How to add two numbers in JavaScript? - javascript

So I am working on a temperature converter which converts Celsius to Kelvin (not responsive), and I want to add the value of the Celsius input to 273 but it's considering it a string. type="number" isn't working so I had to write a seperate code for that. Any help? This is my code:
<html>
<head>
<title>
Celsius to Kelvin converter
</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
</head>
<body>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
.converter {
display: flex;
flex-direction: row;
width: 85%;
position: fixed;
left: 15%;
top: 27%;
}
.forum {
width: 30%;
height: 70px;
background: white;
margin-right: 150px;
}
.heading {
width: 85%;
margin-left: 7.5%;
text-align: center;
position: fixed;
top: 15%;
}
</style>
<div class="heading bg-warning">
<h3> Convert </h3>
</div>
<div class="converter">
<div class="Celsius">
<div class="input-group">
<span class="input-group-text">Celsius</span>
<textarea type="number" class="form-control forum celsii" aria-label="Celsius" onkeyup="checkInput(this)"></textarea>
</div>
</div>
<div class="kelvin">
<div class="input-group overwrite">
<span class="input-group-text">Kelvin</span>
<textarea class="form-control forum kelvii" aria-label="Kelvin" disabled readonly></textarea>
</div>
</div>
<script>
const celsii = document.getElementsByClassName('celsii')[0];
const kelvii = document.getElementsByClassName('kelvii')[0];
celsii.onchange = () => {
kelvii.value = celsii.value + 273;
}
function checkInput() {
var invalidChars = /[^0-9]/gi
if(invalidChars.test(celsii.value)) {
celsii.value = celsii.value.replace(invalidChars,"");
alert('Invalid character');
}
}
</script>
</body>
</html>

The value from input is of type string. Convert it to number before addition
const celsii = document.getElementsByClassName('celsii')[0];
const kelvii = document.getElementsByClassName('kelvii')[0];
celsii.onchange = () => {
const getInputVal = Number(celsii.value)
kelvii.value = !isNaN(getInputVal) ? getInputVal + 273 : alert('Not a number');
}
function checkInput() {
var invalidChars = /[^0-9]/gi
if (invalidChars.test(celsii.value)) {
celsii.value = celsii.value.replace(invalidChars, "");
alert('Invalid character');
}
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
.converter {
display: flex;
flex-direction: row;
width: 85%;
position: fixed;
left: 15%;
top: 27%;
}
.forum {
width: 30%;
height: 70px;
background: white;
margin-right: 150px;
}
.heading {
width: 85%;
margin-left: 7.5%;
text-align: center;
position: fixed;
top: 15%;
}
<div class="heading bg-warning">
<h3> Convert </h3>
</div>
<div class="converter">
<div class="Celsius">
<div class="input-group">
<span class="input-group-text">Celsius</span>
<textarea type="number" class="form-control forum celsii" aria-label="Celsius" onkeyup="checkInput(this)"></textarea>
</div>
</div>
<div class="kelvin">
<div class="input-group overwrite">
<span class="input-group-text">Kelvin</span>
<textarea class="form-control forum kelvii" aria-label="Kelvin" disabled readonly></textarea>
</div>
</div>

just replace following code
celsii.onchange = () => {
kelvii.value = parseInt(celsii.value) + 273;
}
rest you have done good job as your are checking whether input is Number Or not
One more suggestion instead of triggering event on change you may trigger it after validating number so NaN will be o/p

You have a string and a number type, javascript will concatenate those values instead of adding them, you must convert the string to a number using parseInt() if you wish to add them as numbers.
Change the following line in your JS:
kelvii.value = parseInt(celsii.value) + 273;
const celsii = document.getElementsByClassName('celsii')[0];
const kelvii = document.getElementsByClassName('kelvii')[0];
celsii.onchange = () => {
kelvii.value = parseInt(celsii.value) + 273;
}
function checkInput() {
var invalidChars = /[^0-9]/gi
if (invalidChars.test(celsii.value)) {
celsii.value = celsii.value.replace(invalidChars, "");
alert('Invalid character');
}
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
.converter {
display: flex;
flex-direction: row;
width: 85%;
position: fixed;
left: 15%;
top: 27%;
}
.forum {
width: 30%;
height: 70px;
background: white;
margin-right: 150px;
}
.heading {
width: 85%;
margin-left: 7.5%;
text-align: center;
position: fixed;
top: 15%;
}
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
<div class="heading bg-warning">
<h3> Convert </h3>
</div>
<div class="converter">
<div class="Celsius">
<div class="input-group">
<span class="input-group-text">Celsius</span>
<textarea type="number" class="form-control forum celsii" aria-label="Celsius" onkeyup="checkInput(this)"></textarea>
</div>
</div>
<div class="kelvin">
<div class="input-group overwrite">
<span class="input-group-text">Kelvin</span>
<textarea class="form-control forum kelvii" aria-label="Kelvin" disabled readonly></textarea>
</div>
</div>

Related

How to Validate checkbox before displaying popup in javascript

I need to validate the checkbox checked or not before showing the popup static text
This HTML code contains the questions and answers that I give as static in JavaScript and contains the popup style code.
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#question1popups {
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<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.2/css/all.min.css">
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<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
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<fieldset id="question1">
<legend>Pick the fruits from the following</legend>
<br>
<div class="row">
<div class="col-md-2">
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<div id="question1overlay">
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<div id="question1close"><i class="fas fa-times-circle"></i></div>
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The javascript code given in static text and more script is written manually into the HTML code
instead given in particular js file script
Check using if-condition after button is clicked
$(document).ready(function() {
$('#trigger').click(function() {
//IF CONDITION
if($('.row input:checked').length <= 0){
alert('Please Choose Atleast One Option');
return 1;
}

Autofocus after <input> and again after all inputs

Creating a check for entered numbers on the right div with random numbers on the left div
I don't understand how to make sure that:
after entering smth in the first input, it must focus on the second and etc.
And how after all filled inputs, it must focus again on the first input
sorry for my english
do not offer jquery, please
'use strict';
let codeNum = document.querySelectorAll('.codeNumber'),
inputNum = document.querySelectorAll('input');
function randomCode() {
codeNum.forEach(function(item) {
item.textContent = randomInteger(0, 9);
})
function randomInteger(min, max) {
// получить случайное число от (min-0.5) до (max+0.5)
let rand = min - 0.5 + Math.random() * (max - min + 1);
return Math.round(rand);
}
}
randomCode();
let new1 = [];
let new2 = [];
function checkInput() {
for (var i=0;i<codeNum.length;i++) {
new1[i] = codeNum[i].innerHTML;
new2[i] = inputNum[i].value;
}
if (JSON.stringify(new1)==JSON.stringify(new2)) {
randomCode();
}
console.log(JSON.stringify(new1));
console.log(JSON.stringify(new2));
}
for (var i=0;i<codeNum.length;i++) {
inputNum[i].addEventListener('input', checkInput)
}
#import url('https://fonts.googleapis.com/css?family=Raleway:200');
html, body {
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body {
display: flex;
align-items: center;
justify-content: space-around;
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border: 1px solid #a7a7a7;
border-radius: 4px;
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input::-webkit-outer-spin-button,
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/* display: none; <- Crashes Chrome on hover */
-webkit-appearance: none;
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background: linear-gradient(60deg, #f79533, #f37055, #ef4e7b, #a166ab, #5073b8, #1098ad, #07b39b, #6fba82);
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I’m not sure if I understood you question, but here’s my approach:
I’ d use recursive functions to ensure it’s called after the user did something:
function rec(num){
if (num<NumberOfElements){
let el=document.querySelectorAll(".text")[num]//select current element
el.addEventListener("input", function(){//check for input
//do something
//. /do something
num++
rec(num)//recall the recursive function (“loop again”)
}
}}
I didn’t tried the code and you’ll have to customise this for your needs.

I have created tasks through template literals, and want to drag and drop names to the task i want

`
<!DOCTYPE HTML>
<html lang="en">
<head>
<title>Task Manager</title>
<meta charset="utf-8">
<link rel="stylesheet" type="text/css" href="index.css">
</head>
<body>
<div id="main-container">
<header>
<h1>TASK MANAGER</h1>
<div id="task-value-check" class="value-check"></div>
<div id="member-value-check" class="value-check"></div>
<div id="input">
<div id="task-form">
<form onsubmit="createTask(event)">
<input class="text-input" name="task" type="text" placeholder="Name of
new task">
<input class="button" type="submit" value="ADD"/>
</form>
</div>
<div id="tasks-header" class="header">TASKS</div>
<div id="member-form">
<form onsubmit="createMember(event)">
<input class="text-input" name="teamMember" type="text"
placeholder="Name of new team member">
<input class="button" type="submit" value="ADD"/>
</form>
</div>
<div id="members-header" class="header">TEAM MEMBERS</div>
</div>
</header>
<main>
<div id="assign-value-check" class="value-check"></div>
<div id="assign-form">
<form onsubmit="assignToMember(event)">
<input class="text-input" class="input-txt" id="check-task" type="text"
placeholder="Pick task">
<input type="submit" id="assign-button" value="ASSIGN" class="button"
class="input-submit">
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let task = document.querySelector("[name='task']").value;
task = task.toLowerCase();
const taskList = JSON.parse(localStorage.getItem('task')) || [];
if (task === "") {
document.getElementById("task-value-check").innerHTML = "PLEASE ENTER A TASK";
} else {
document.getElementById("task-value-check").innerHTML = "";
document.getElementById("member-value-check").innerHTML = "";
const tasks = { task};
taskList.push(tasks);
window.localStorage.setItem('task', JSON.stringify(taskList));
event.target.reset();
renderTaskList();
}
}
function createMember(event) {
event.preventDefault();
let member = document.querySelector("[name='teamMember']").value;
member = member.toLowerCase();
if (member === "") {
document.getElementById("member-value-check").innerHTML = "PLEASE ENTER A TEAM MEMBER";
} else {
document.getElementById("member-value-check").innerHTML = "";
document.getElementById("task-value-check").innerHTML = "";
const members = { member };
const memberList = JSON.parse(localStorage.getItem('member')) || [];
memberList.push(members);
window.localStorage.setItem('member', JSON.stringify(memberList));
event.target.reset();
renderMemberList();
}
}
function assignToMember(event) {
event.preventDefault();
const taskList = JSON.parse(localStorage.getItem('task')) || {};
let nameTask = document.getElementById('check-task').value;
let valueCheck = document.getElementById('assign-value-check');
if (nameTask === "") {
valueCheck.innerHTML = "PLEASE ENTER A TASK AND A TEAM MEMBER";
} else if (nameTask === "") {
valueCheck.innerHTML = "PLEASE ENTER A TASK";
} else {
valueCheck.innerHTML = "";
nameTask = nameTask.toLowerCase();
const assignMemberList = JSON.parse(localStorage.getItem('assignment')) || [];
let task;
if (nameTask != '') {
for (const a of taskList) {
if (a.task === nameTask) {
task = a.task;
}
}
if (task != undefined) {
let assignToMember = {task};
assignMemberList.push(assignToMember);
window.localStorage.setItem('assignment', JSON.stringify(assignMemberList));
} else {
valueCheck.innerHTML = "PLEASE ENTER AN EXISTING TASK AND/OR TEAM MEMBER";
}
renderUpdatedTaskList();
}
event.target.reset();
}
}
function renderTaskList() {
const taskList = JSON.parse(window.localStorage.getItem("task")) || [];
const taskListOutput = document.getElementById("tasks-rendering");
taskListOutput.innerHTML = "";
for (const a of taskList) {
let taskElement = document.createElement("div");
taskElement.innerHTML = `<div class="object-render">
<h4>${a.task.charAt(0).toUpperCase() + a.task.slice(1)}</h4>
</div>`;
taskListOutput.appendChild(taskElement);
}
}
function renderMemberList() {
const memberList = JSON.parse(window.localStorage.getItem("member")) || [];
const memberListOutput = document.getElementById("members-rendering");
memberListOutput.innerHTML = "";
for (const m of memberList) {
let memberElement = document.createElement("div");
memberElement.innerHTML = `<div class="object-render" draggable="true"
ondragstart="drag(event)">
<h4 id="drag1">${m.member.charAt(0).toUpperCase() +
m.member.slice(1)}</h4>
</div>`;
memberListOutput.appendChild(memberElement);
}
}
I am trying to drag and drop names to different tasks, but when I do the names i drop only
appears on the first created task. I want to be able to drag and drop names to the task I want. I also want them to stay there when the site is refreshed.
function renderUpdatedTaskList(){
const assignMemberList = JSON.parse(localStorage.getItem('assignment')) || [];
const assignmentListOutput = document.getElementById('assignments-rendering');
assignmentListOutput.innerHTML = "";
for (const a of assignMemberList) {
let assignmentElement = document.createElement("div");
assignmentElement.innerHTML = `<div id="assignment-object-render" class="object-render-
assignments"
class="containers" ondragover="allowdrop(event)">
<h1>${a.task.charAt(0).toUpperCase() + a.task.slice(1)}</h1>
<br>
<p>medlemmer</p>
<div class="membersDiv" ondragover="allowdrop(event)" ondrop="drop(event)">
</div>
</div>`;
assignmentListOutput.appendChild(assignmentElement);
}
renderMemberNamesOnTask();
}
function allowdrop(ev) {
ev.preventDefault();
}
function drag(ev) {
let memberInfo = ev.target.innerText;
ev.dataTransfer.setData("text/plain", memberInfo);
}
function drop(ev) {
ev.preventDefault();
const taskAndMember = JSON.parse(localStorage.getItem("taskAndMember")) || [];
let memberInfo = ev.dataTransfer.getData("text/plain");
task = ev.target.parentElement.querySelector("h1").innerText;
ev.target.append(memberInfo);
memberAndTask = {task, memberInfo};
taskAndMember.push(memberAndTask);
window.localStorage.setItem("taskAndMember", JSON.stringify(taskAndMember));
renderUpdatedTaskList();
}
function renderMemberNamesOnTask(){
const taskAndMember = JSON.parse(localStorage.getItem("taskAndMember")) || [];
let membersDiv = document.querySelectorAll(".membersDiv");
membersDiv.innerHTML = "";
for(const m of taskAndMember){
let htmlTxt = document.createElement("div");
htmlTxt.innerHTML = `${m.memberInfo}`;
Every name i drag on to a task will only appear on the first created task. I am pretty sure the problem lies somewhere here.
membersDiv.appendChild(htmlTxt);
}
}
`
`
body{
margin: 0;
padding: 0;
font-family: 'Oswald', sans-serif;
}
#main-container{
position: relative;
background-color: gainsboro;
margin: 0 auto;
width: 800px;
height: 1000px;
border-bottom: 30px solid floralwhite;
}
header{
z-index: 2;
position: absolute;
width: 800px;
height: 100px;
background-color: floralwhite;
text-align: center;
}
.text-input{
font-size: 15px;
border: 1px solid white;
height: 17px;
width: 250px;
}
.button{
font-size: 14px;
border: 1px solid white;
color: grey;
height: 20px;
width: 50px;
}
#task-form{
position: absolute;
left: 40px;
margin-top: 15px;
top: 110px;
}
#member-form{
position: absolute;
right: 40px;
margin-top: 15px;
top: 110px;
}
.value-check{
position: absolute;
z-index: 3;
top: 110px;
font-size: 12px;
color: red;
}
#task-value-check{
left: 40px;
}
#member-value-check{
right: 210px;
}
#assign-value-check{
top: 561px;
left: 135px;
}
.header{
position: absolute;
z-index: 2;
top: 170px;
background-color: antiquewhite;
color: grey;
border-bottom: 1px solid white;
height: 20px;
width: 370px;
font-size: 15px;
padding: 10px;
}
#tasks-header{
left: 0px;
}
#members-header{
right: 0px;
}
#assignments-header{
top: 620px;
width: 780px;
text-align: center;
}
#assign-form{
position: absolute;
left: 220px;
top: 578px;
}
#check-task{
position: absolute;
left: -85px;
}
#check-member{
position: absolute;
right: -445px;
}
#assign-button{
position: absolute;
width: 80px;
left: 450px;
}
#plus-symbol{
position: absolute;
color: white;
top: -28px;
left: 175.5px;
}
#assignment-object-render{
background-color: floralwhite;
padding: 20px;
padding-bottom: 50px;
font-size: 10px;
text-align: center;
}
.object-render{
background-color: floralwhite;
padding: 20px;
font-size: 10px;
text-align: center;
width: 62px;
word-wrap: break-word;
overflow-y: auto;
height: 55px;
}
.object-render-assignments{
background-color: floralwhite;
padding: 20px;
font-size: 10px;
text-align: center;
}
#tasks-rendering{
top: 210px;
}
#members-rendering{
top: 210px;
right: 0px;
}
#assignments-rendering{
bottom: 20px;
width: 760px;
height: 280px;
}
.rendering{
position: absolute;
background-color: antiquewhite;
font-family: sans-serif;
padding: 20px;
width: 350px;
height: 300px;
display: grid;
grid-template-columns: repeat(3, 1fr);
grid-template-rows: repeat(3, 1fr);
grid-row-gap: 20px;
grid-column-gap: 20px;
overflow: auto;
}
.membersDiv{
height: 70px;
width: 200px;
background-color: lightgray;
overflow-y: scroll;
}
This is the css code.
`

Javascript file partially running

So I taught myself coding a few years ago, and got it just enough to put together a few tools for work. I recently had to migrate my site out of CodePen and onto an actual web server. Now I'm having an issue where part of my javascript is executing properly (a portion that empties all other input fields when a user enters an input field using JQuery), but the button that calculates an answer will not work. I believe the .click is not picking it up. Either way I'm not getting error messages, the button just does nothing when I press it.
When I put the code in a snippet to share with you guys, it works (just like it did in CodePen), but the exact same code on my web host does not work. I'm really at a loss here and any help would be greatly appreciated. I feel like I'm missing some small line of code that's supposed to be included in all web files.
$(document).ready(function() {
//Clear out input fields when not selected
$("#sg").focusin(function() {
$("#density").val("");
});
$("#density").focusin(function() {
$("#sg").val("");
});
$("#pounds").focusin(function() {
$("#grams").val("");
$("#percentage").val("");
});
$("#grams").focusin(function() {
$("#percentage").val("");
$("#pounds").val("");
});
$("#percentage").focusin(function() {
$("#pounds").val("");
$("#grams").val("");
});
$(".input_field").focusin(function() {
$("#density").removeClass('highlight');
$("#sg").removeClass('highlight');
$("#pounds").removeClass('highlight');
$("#grams").removeClass('highlight');
$("#percentage").removeClass('highlight');
});
//Calculate on press of enter
$("#button").keypress(function(e) {
if (e.which == 13) {
alert("this is working");
}
});
$("#button").click(function() {
calculateButton();
});
//Calculate values on button hit
function calculateButton() {
function numberWithCommas(x) {
x = x.toString();
var pattern = /(-?\d+)(\d{3})/;
while (pattern.test(x))
x = x.replace(pattern, "$1,$2");
return x;
}
function removeCommas(x) {
x = x.replace(",", "");
return x;
}
var results = 0;
//Pulling information from input cells
var densityStr = document.getElementById("density").value;
var sgStr = document.getElementById("sg").value;
var poundsStr = document.getElementById("pounds").value;
var gramsStr = document.getElementById("grams").value;
var percentageStr = document.getElementById("percentage").value;
//remove commas from string and then convert string to number
var densityNum = Number(removeCommas(densityStr));
var sgNum = Number(removeCommas(sgStr));
var poundsNum = Number(removeCommas(poundsStr));
var gramsNum = Number(removeCommas(gramsStr));
var percentageNum = Number(removeCommas(percentageStr));
if (densityStr.length !== 0) {
var sgConversion = densityNum / 8.3454;
$("#sg").val(sgConversion.toFixed(3));
$("#density").addClass('highlight');
} else if (sgStr.length !== 0) {
var densityConversion = sgNum * 8.3454;
$("#density").val(densityConversion.toFixed(3));
$("#sg").addClass('highlight');
}
if (poundsStr.length !== 0) {
$("#pounds").addClass("highlight");
densityNum = document.getElementById("density").value;
var gramsConversion = poundsNum * 119.83;
var percentageConversion = poundsNum / densityNum * 100;
$("#grams").val(gramsConversion.toFixed(0));
$("#percentage").val(percentageConversion.toFixed(2));
} else if (gramsStr.length !== 0) {
$("#grams").addClass("highlight");
densityNum = document.getElementById("density").value;
var poundsConversion = gramsNum / 119.83;
var percentageConversion = poundsConversion / densityNum * 100;
$("#pounds").val(poundsConversion.toFixed(2));
$("#percentage").val(percentageConversion.toFixed(2));
} else if (percentageStr.length !== 0) {
$("#percentage").addClass("highlight");
densityNum = document.getElementById("density").value;
var percentageDec = percentageNum / 100;
var poundsConversion = densityNum * percentageDec;
var gramsConversion = poundsConversion * 119.83;
$("#pounds").val(poundsConversion.toFixed(2));
$("#grams").val(gramsConversion.toFixed(2));
}
}
});
body {
margin: 0;
font-family: 'Lato', sans-serif;
background: #d2d2d2;
}
p {
text-align: center;
}
conatiner {
max-width: 1024px;
margin: 0 auto;
}
#navbarContainer {
background: #F44336;
overflow: hidden;
width: 100%;
margin: 0;
}
.navbar {
float: left;
display: block;
font-family: 'Lato', sans-serif;
height: 40px;
width: 200px;
line-height: 40px;
text-align: center;
background: #F44336;
text-decoration: none;
color: #212121;
}
.navbar:hover {
background: #E57373;
color: white;
}
.active {
background: #C62828;
color: white;
}
#formContainer {
width: 450px;
background: #FDFFFC;
margin: 50px auto;
padding: 0px;
border-radius: 8px;
overflow: hidden;
}
#formContainer header {
width: 100%;
height: 130px;
background-color: #3cba54;
overflow: auto;
color: white;
}
header h1 {
margin: 35px 0 0 0;
text-align: center;
line-height: 30px;
}
header h3 {
line-height: 40px;
text-align: center;
margin: 0;
}
#heading {
background-color: #3cba54;
height: 40px;
color: white;
margin-bottom: 25px;
margin-left: -30px;
}
#heading h3 {
line-height: 40px;
}
form {
padding: 20px 0 0 20px;
text-align: center;
}
label {
display: inline-block;
width: 220px;
text-align: right;
}
#myForm .input_field {
margin-left: 20px;
margin-bottom: 10px;
font-size: 20px;
padding-left: 10px;
width: 125px;
height: 35px;
font-size: 17px;
border-radius: 3px;
background-color: #E0E0E0;
border: none;
}
#button {
display: block;
border-radius: 6px;
width: 200px;
height: 50px;
padding: 8px 15px 8px 15px;
margin: 0 auto;
margin-bottom: 50px;
font-size: 16px;
box-shadow: 0 6px #540000;
background-color: #FF3636;
border: none;
outline: none;
}
#button:active {
background-color: #B81B1B;
box-shadow: 0 1px #27496d;
transform: translateY(5px);
}
.highlight {
background: #FFEB3B !important;
}
<!DOCTYPE html>
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<link rel="stylesheet" href="style.css">
<script type="text/javascript" src="script.js"></script>
</head>
<body>
<div id="container">
<div id="navbarContainer">
<a class="navbar" id="62" href="https://s.codepen.io/awheat/debug/MpMrEo/yYAyLDjQWgKr">326 IAC 6-2 Tool</a>
<a class="navbar" id="63" href="https://s.codepen.io/awheat/debug/gWmazm/NQkzYnjeQZyA">326 IAC 6-3 Tool</a>
<a class="navbar active" id="voc" href="https://s.codepen.io/awheat/debug/qVpPNm/VGAWNnJYBjZr">VOC Conversion Tool</a>
</div>
<div id="formContainer">
<header>
<h1>VOC Conversion Tool</h1>
<h3>(for conversion of VOC data to other units)</h3>
</header>
<form id="myForm">
<label>Density of Coating (lbs/gal): </label><input type="text" id="density" class="input_field">
<label>Specific Graviy: </label><input type="text" id="sg" class="input_field">
<div id="heading">
<h3>VOC Content</h3>
</div>
<label>Pounds per Gallon (lbs/gal): </label><input type="text" id="pounds" class="input_field">
<label>Grams per Liter (g/L): </label><input type="text" id="grams" class="input_field">
<label>Percentage (%): </label><input type="text" id="percentage" class="input_field"><br><br>
<input type="button" id="button" value="Calculate" autofocus>
</form>
</div>
</div>
</body>
</html>
Sometimes putting script tags before the elements on the page can cause issues. You can try to put the scripts at the bottom of the body like this:
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div id="container">
<div id="navbarContainer">
<a class="navbar" id="62" href="https://s.codepen.io/awheat/debug/MpMrEo/yYAyLDjQWgKr">326 IAC 6-2 Tool</a>
<a class="navbar" id="63" href="https://s.codepen.io/awheat/debug/gWmazm/NQkzYnjeQZyA">326 IAC 6-3 Tool</a>
<a class="navbar active" id="voc" href="https://s.codepen.io/awheat/debug/qVpPNm/VGAWNnJYBjZr">VOC Conversion Tool</a>
</div>
<div id="formContainer">
<header>
<h1>VOC Conversion Tool</h1>
<h3>(for conversion of VOC data to other units)</h3>
</header>
<form id="myForm">
<label>Density of Coating (lbs/gal): </label><input type="text" id="density" class="input_field">
<label>Specific Graviy: </label><input type="text" id="sg" class="input_field">
<div id="heading">
<h3>VOC Content</h3>
</div>
<label>Pounds per Gallon (lbs/gal): </label><input type="text" id="pounds" class="input_field">
<label>Grams per Liter (g/L): </label><input type="text" id="grams" class="input_field">
<label>Percentage (%): </label><input type="text" id="percentage" class="input_field"><br><br>
<input type="button" id="button" value="Calculate" autofocus>
</form>
</div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script type="text/javascript" src="script.js"></script>
</body>
</html>

Password Generator does not work until I move slider

Problem: My password generator will not work until I move my slider. However, I would like the value to default to 8. So if someone loads page, and clicks generate PW, a random pw of 8 would populate.
//generate a password function
function passwordGenerator () {
// Length of the password?
var passwordLength = document.getElementById('num').value;
// characters options for PW
const values = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!##$%^&*()";
// defining password
var password = "";
// creating a loop to choose password
for (var i = 1; i <= passwordLength; i++) {
password = password + values.charAt(Math.floor(Math.random() * Math.floor(values.length -1)));
}
// adding the password to the content area
document.getElementById('display').value = password;
}
// adjust value when moving slider
function sliderMove(){
document.getElementById('num').value = document.getElementById('slider1').value;
document.getElementById('num').textContent = document.getElementById('num').value;
}
//copy to clipboard
function selectText() {
const input = document.getElementById('display');
input.focus();
input.select();
document.execCommand('copy')
}
.backgroundWhite {
background-color: white;
border: darkgray 2px solid;
padding-bottom: 25px;
}
.backgroundGray {
background-color: lightgray;
width: 100%;
height: 500%;
}
.passwordBox {
width: 500px;
height: 200px;
text-align: center;
}
body {
height: 100%;
background-color: lightgray;
}
.headText {
padding: 50px;
}
.buttonOnClick {
margin: 20px;
}
.passGenButton {
color: white;
background-color: red;
margin-right: 15%;
height: 40px;
border-radius: 12px;
}
.copyButton {
margin-left: 15%;
background-color: darkgray;
color: white;
height: 40px;
border-radius: 12px;
}
textarea {
padding: 20px;
font-size: 19px;
color: #4f4f4f;
}
.titleClass {
padding-top: 10px;
}
#media (max-width: 537px) {
.passGenButton {
color: white;
background-color: red;
margin-right: 1%;
height: 40px;
border-radius: 12px;
}
.copyButton {
margin-left: 1%;
background-color: darkgray;
color: white;
height: 40px;
border-radius: 12px;
}
.passwordBox {
width: 400px;
height: 200px;
text-align: center;
}
.backgroundWhite {
background-color: white;
border: darkgray 2px solid;
padding-bottom: 25px;
padding-left: 20px;
}
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css"
integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<link rel="stylesheet" type="text/css" href="style.css">
<script src="app.js"></script>
<title>Random Password Generator</title>
</head>
<body>
<div class="conatiner backgroundGray">
<div class="row">
<div class="col-12">
<div class="topText">
<!-- Header -->
<h1 class="text-center text-dark headText">Password Generator</h1>
</div>
<div class="container">
<div class='row'>
<div class="col-lg-12 col-sm-12 text-center">
<div class="content backgroundWhite">
<!-- Sub Header -->
<h4 class="titleClass">Generate a Password</h4>
<br />
<!-- Slider -->
<div class="slidecontainer">
<p>Select PW Length</p>
<input id="slider1" type="range" min="8" max="128" value="8" onchange="sliderMove()"
class="robClass">
<span id="num">8</span>
</div>
<br />
<!-- Password Box -->
<textarea class="passwordBox" type="text" id="display"
placeholder="Your Secure Password"></textarea>
<br />
<button onclick="passwordGenerator()" class="passGenButton buttonOnClick">Generate
Password</button>
<button class="buttonOnClick copyButton" defaultValue="8" onclick="selectText()">Copy to
clipboard</button>
<div id='length'></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
I have played with HTML and JS. I have tried to create a var num = 8;
no luck.
Does anyone have any ideas on how I can do this?
At the start of your passwordGenerator function:
var passwordLength = document.getElementById('num').value;
This element (<span id="num">8</span>) doesn't have a value attribute, so your function will try to generate a password with a length equal to undefined.
You should get the value from your slider instead:
var passwordLength = document.getElementById('slider1').value;
You can also simplify your function sliderMove function:
function sliderMove() {
document.getElementById('num').textContent = document.getElementById('slider1').value;
}

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