How do I make my iframe responsive for all devices? - javascript

I am not an expert in HTML, CSS, or JavaScript, but I have this website that needs to be responsive on all devices. However, it does not seem like it is working for some reason and instead creates major gaps of white space when I view the website on a mobile web browser:
Here is the code for it:
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,height=device-height,initial-scale=1">
<title>untitled document</title>
<style media="screen">
body {
background-color: #f0f0f0;
font: 1em verdana, arial, helvetica, sans-serif;
line-height: 0px;
}
h1,h2 {
font-size: 2em;
color: #f00;
text-align: center;
text-shadow: 0 0 0.06em #000,0 0 0.12em #000;
}
.af-textWrap {
display: block;
text-align: center;
color: #b7b7b7;
}
.af-element {
text-align: center;
}
#awf_field-90534028,
#awf_field-90534029 {
display: block;
width: 98%;
max-width: 28.125em;
margin: auto;
text-align: left;
}
.image {
display: block;
width: 98%;
max-width: 30em;
height: auto;
margin: auto;
}
</style>
</head>
<body>
<div id="worked"></div>
<script src="https://fast.wistia.com/embed/medias/cj7247tp29.jsonp" async></script><script src="https://fast.wistia.com/assets/external/E-v1.js" async></script><div class="wistia_responsive_padding" style="padding:56.25% 0 0 0;position:relative;"><div class="wistia_responsive_wrapper" style="height:100%;left:0;position:absolute;top:0;width:100%;"><div class="wistia_embed wistia_async_cj7247tp29 videoFoam=true" style="height:100%;width:100%"> </div></div></div>
<h1>Offer Ends In:</h1>
<h2 id="time"></h2>
<!-- AWeber Web Form Generator 3.0.1 -->
<form class="af-form-wrapper" accept-charset="UTF-8" action="https://www.aweber.com/scripts/addlead.pl" method="post">
<input name="meta_web_form_id" type="hidden" value="604218668">
<input name="meta_split_id" type="hidden" value="">
<input name="listname" type="hidden" value="awlist4661276">
<input id="redirect_56ab2ff33416d920a3c24dc4d8e140f4" name="redirect" type="hidden" value="http://bloggingnetworkonline.com/InternetMarketing/?page_id=133&preview=true">
<input name="meta_adtracking" type="hidden" value="My_Web_Form">
<input name="meta_message" type="hidden" value="1">
<input name="meta_required" type="hidden" value="name,email">
<input name="meta_tooltip" type="hidden" value="name||First Name...,,email||Best Email...">
<div id="af-form-604218668" class="af-form">
<div id="af-body-604218668" class="af-body af-standards">
<div class="af-element">
<label class="previewLabel" for="awf_field-90534028"></label>
<div class="af-textWrap">
<input id="awf_field-90534028" class="text" tabindex="500" name="name" type="text" placeholder="First Name...">
</div>
</div>
<div class="af-element">
<label class="previewLabel" for="awf_field-90534029"></label>
<div class="af-textWrap">
<input id="awf_field-90534029" class="text" tabindex="500" name="email" type="text" placeholder="Best Email...">
</div>
</div>
<div class="af-element buttonContainer">
<input id="af-submit-image-604218668" class="image" tabindex="502" alt="Submit Form" name="submit" src="https://hostedimages-cdn.aweber-static.com/MTE0ODQyNQ==/original/d316599087b84f9498e3854009bdad52.png" type="image"/>
</div>
<div class="af-element privacyPolicy">
<p><strong>I respect your <a title="Privacy Policy" href="https://www.aweber.com/permission.htm" target="_blank" rel="nofollow">email privacy</a></strong></p>
<div class="af-clear"> </div>
</div>
</div>
</div>
<div style="display: none;"><img src="https://forms.aweber.com/form/displays.htm?id=bAwsTIwcbGwc" alt="">
</div>
</form>
<!-- /AWeber Web Form Generator 3.0.1 -->
<script>
(function() {
'use strict';
var handler = function() {
if (--sec < 0) {
sec = 59;
if (--min < 0) {
min = 0;
sec = 0;
}
}
var min1 = '0' + min + 'm';
var min2 = min + 'm';
var sec1 = '0' + sec + 's';
var sec2 = sec + 's';
var col = ':';
document.getElementById('time').textContent = (min < 10 ? min1 : min2) + col + (sec < 10 ? sec1 : sec2);
};
var sec = 0;
var min = 15;
handler();
setInterval(handler, 1000);
}());
</script>
</body>
</html>

Looks like your iframe is injected by JavaScript so I personally suggest adding a setInterval() to your code to monitor the iframe element. Once the iframe element is available, get the body in the iframe and set it's margin to 0.
$(function() {
$('#test').append('<iframe src="http://www.w3schools.com"></iframe>');
var timer = setInterval(function() {
$('iframe').load( function() {
$('iframe').contents().find("head").append($("<style type='text/css'>body{margin:0;}</style>"));
clearInterval( timer ); // Clear the interval
});
}, 10);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="test">
</div>

Related

Random Image for 404

To start off I'm terrible at Js and super new at it. I'm trying to make a random image pop up when the site goes to a 404. I can't tell if my website is actually running the code or not because console.log wasn't working. Because of that I took all my CSS and js and put it all into the same HTML file to see if that was the problem (it wasn't) Any help is much appreciated :)
HTML:
<html>
<head>
<?php include $_SERVER["DOCUMENT_ROOT"]."/php/ballsdeep1headndnav.php"; ?>
<link rel="stylesheet" href="../main.css" />
<style>
.yikes {
background-color: black;
}
.white {
color: white;
}
.cute_block {
border: blue;
border: 10px;
margin: 50px;
}
label {
margin: 10px;
}
input {
margin: 10px;
color: black;
}
</style>
<title>Yikes.</title>
</head>
<body class="yikes">
<h1 class="center white">
<404>
</h1>
<div id="getMeme()"></div>
<p class="white cute_block center">We have no clue how you ended up here</p>
<form class="white cute_block center">
<label for="how">How did you get here</label>
<input type="text" id="how" name="how"><br><br>
<label for="else">Anything else?</label>
<input type="text" id="else" name="else"><br><br>
<input type="submit" value="Submit">
</form>
</body>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.0/dist/js/bootstrap.bundle.min.js" integrity="sha384-p34f1UUtsS3wqzfto5wAAmdvj+osOnFyQFpp4Ua3gs/ZVWx6oOypYoCJhGGScy+8" crossorigin="anonymous"></script>
<script>
function getMeme() {
var meme = new Array('images/no_more-ico.png', 'images/nothing.png', 'images/phpfiles.png', 'images/sike.png');
var pp = Math.floor(Math.random() * meme.length);
document.getElementById("result").onload = '<img src="' + meme[pp] + '" />';
}
</script>
</html>
Using your code, you would need to ensure the function getMeme is called/invoked. Furthermore, you would need to update the function to modify the innerHTML of the element with id result instead of assigning to it's event handler onload.
See demo below:
I've included a console.log for debugging purposes on stackoverflow as images shared in the question are not available.
<head>
<?php include $_SERVER["DOCUMENT_ROOT"]."/php/ballsdeep1headndnav.php"; ?>
<link rel="stylesheet" href="../main.css" />
<style>
.yikes {
background-color: black;
}
.white {
color: white;
}
.cute_block {
border: blue;
border: 10px;
margin: 50px;
}
label {
margin: 10px;
}
input {
margin: 10px;
color: black;
}
</style>
<title>Yikes.</title>
</head>
<body class="yikes">
<h1 class="center white">
<404>
</h1>
<span id="result"></span>
<p class="white cute_block center">We have no clue how you ended up here</p>
<form class="white cute_block center">
<label for="how">How did you get here</label>
<input type="text" id="how" name="how"><br><br>
<label for="else">Anything else?</label>
<input type="text" id="else" name="else"><br><br>
<input type="submit" value="Submit">
</form>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.0/dist/js/bootstrap.bundle.min.js" integrity="sha384-p34f1UUtsS3wqzfto5wAAmdvj+osOnFyQFpp4Ua3gs/ZVWx6oOypYoCJhGGScy+8" crossorigin="anonymous"></script>
<script>
function getMeme() {
var meme = new Array('images/no_more-ico.png', 'images/nothing.png', 'images/phpfiles.png', 'images/sike.png');
var pp = Math.floor(Math.random() * meme.length);
console.log("chose meme",meme[pp]); //line included for debugging purposes on stackoverflow as images shared in question are not available
//update `innerHTML` of target element
document.getElementById("result").innerHTML = '<img src="' + meme[pp] + '" />';
}
//call function to getMeme at the end of the page
getMeme();
</script>
</body>
</html>

form taking full width of the screen

I am building a sample project named Tennis Club Management using Javascript,HTML,CSS . In this project i have login html page & managePlayer html page. In manageplayer.html, i have two button namely Add Players and Show Players . On button click of Add Players,only then i want to show the form for registering the players.
The problem is when the form is created, the sidebar which automatically gets created on page load ( have created separate file sidebar.js ) gets lowered down when the form appears as form is taking full width
Below are the screenshots and code files
index.js
// --------------TESTING CODE FOR LOGIN PAGE LOGIN BUTTON CLICK----------------
var istableCreated = false;
var email, password;
document.querySelector(".loginbtn").addEventListener("click", (e) => {
email = document.querySelector(".email").value;
password = document.querySelector(".password").value;
document.querySelector(".labelemailerror").innerHTML = "";
document.querySelector(".labelpassworderror").innerHTML = "";
// ------------TESTING CODE FOR CHECKING VALIDATION AND PRINTING ERROR ON LABELS IF ANY-------------
if (email === "admin#wimbledon.com" && password === "rogerfederer") {
console.log("Login successfull....");
window.open("profile.html");
}
else if (email === "" && password === "") {
document.querySelector(".labelpassworderror").innerHTML = "Email and Password cannot be blank"
}
else if (email === "") {
document.querySelector(".labelemailerror").innerHTML = "Email cannot be blank";
}
else if (password === "") {
document.querySelector(".labelpassworderror").innerHTML = "Password cannot be blank"
}
else {
document.querySelector(".labelpassworderror").innerHTML = "Invalid Email or Password";
}
console.log(email, password);
e.preventDefault();
});
//------------------------------------MANAGE PLAYERS PAGE----------------------------------
//--------------------------------TESTING CODE FOR SHOWING PLAYERS OF MANAGE PLAYERS PAGE--------------------------
function showplayers() {
if(istableCreated==false){
istableCreated = true;
console.log(istableCreated);
//----------TESTING CODE FOR CREATING WRAPPER FOR BOOTSTRAP TABLE FOR RESPONSIVENESS--------
var myDiv = document.createElement("div");
myDiv.className = "table-responsive";
myDiv.id="table-responsive";
document.body.appendChild(myDiv);
//-----------TESTING CODE FOR CREATING BOOTSTRAP DYNAMIC TABLE USING JAVASCRIPT-------------
var myTable = document.createElement("table");
myTable.style.marginTop = "2%";
myTable.className = "table";
myTable.id="table";
document.body.appendChild(myDiv).appendChild(myTable);
var myThead = document.createElement("thead");
document.body.appendChild(myDiv).appendChild(myTable).appendChild(myThead);
var myTr = document.createElement("tr");
document.body.appendChild(myDiv).appendChild(myTable).appendChild(myThead).appendChild(myTr);
var myThID = document.createElement("th");
myThID.scope = "col";
myThID.innerHTML = "ID";
document.body.appendChild(myDiv).appendChild(myTable).appendChild(myThead).appendChild(myTr).appendChild(myThID);
var myThName = document.createElement("th");
myThName.scope = "col";
myThName.innerHTML = "Name";
document.body.appendChild(myDiv).appendChild(myTable).appendChild(myThead).appendChild(myTr).appendChild(myThName);
var myThGender = document.createElement("th");
myThGender.scope = "col";
myThGender.innerHTML = "Gender";
document.body.appendChild(myDiv).appendChild(myTable).appendChild(myThead).appendChild(myTr).appendChild(myThGender);
var mySubscription = document.createElement("th");
mySubscription.scope = "col";
mySubscription.innerHTML = "Subscription";
document.body.appendChild(myDiv).appendChild(myTable).appendChild(myThead).appendChild(myTr).appendChild(mySubscription);
var myfeeStatus = document.createElement("th");
myfeeStatus.scope = "col";
myfeeStatus.innerHTML = "Fee Status";
document.body.appendChild(myDiv).appendChild(myTable).appendChild(myThead).appendChild(myTr).appendChild(myfeeStatus);
}
else{
console.log(istableCreated);
}
}
function addplayers() {
console.log("add players clicked.....")
}
managePlayers.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Manage Players</title>
<!-- ADDING FONT AWESOME CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<!-- ADDING BOOTSTRAP CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css"
integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">
<!-- ADDING STYLE.CSS -->
<link rel="stylesheet" href="/css/style.css">
</head>
<body>
<!-- ADDING BUTTONS LIKE SHOW PLAYERS, ADD PLAYERS USING CSS BOOTSTRAP -->
<button type="button" class="btn btn-secondary showplayers" onclick="showplayers();">Show Players</button>
<button type="button" class="btn btn-secondary addplayers" onclick="addplayers()">Add Players</button>
<!-- CREATING REGISTRATION FORM OF CUSTOMER -->
<form class="customerregistration">
<div class="container form-div">
<!-- ADDING ID AND DOB -->
<div class="row">
<div class="col">
<label>ID :</label>
<input type="text">
</div>
<div class="col">
<label>DOB :</label>
<input type="date" id="birthday" name="birthday">
</div>
</div>
<!-- ADDING NAME AND GENDER -->
<div class="row">
<div class="col">
<label>NAME :</label>
<input type="text" placeholder="Enter Name">
</div>
<div class="col">
<label>GENDER :</label>
<input type="radio" name="gender" value="male"> Male
<input type="radio" name="gender" value="female"> Female
</div>
</div>
<!-- ADDING CONTACT NUMBER -->
<div class="row">
<div class="col">
<label>CONTACT :</label>
</div>
<div class="col">
<input type="text" placeholder="Enter Contact Number">
</div>
</div>
<!-- ADDING ADDRESS -->
<div class="row">
<div class="col">
<label>ADDRESS :</label>
</div>
<div class="col">
<textarea class="address" id="address" cols="25" rows="3"></textarea>
</div>
</div>
<!-- ADDING ID PROOF -->
<div class="row">
<div class="col">
<label>ID PROOF :</label>
<select class="idproof" id="idproof">
<option value="select">---Select---</option>
<option value="license">License</option>
<option value="aadhaar">Aadhaar</option>
<option value="passport">Passport</option>
</select>
</div>
<div class="col">
<input type="text">
</div>
</div>
<!-- ADDING MEMBERSHIP -->
<div class="row">
<div class="col">
<label>MEMBERSHIP :</label>
</div>
<div class="col">
<select class="idproof" id="idproof">
<option value="select">---Select---</option>
<option value="license">MONTHLY</option>
<option value="aadhaar">HALF YEARLY</option>
<option value="passport">ANNUALLY</option>
</select>
<label class="membership-package"></label>
</div>
</div>
<!-- ADDING SAVE BUTTON -->
<div class="row">
<button type="submit" class="btn-success">SAVE</button>
</div>
</div>
</form>
<!-- ADDING BOOTSTRAP JS -->
<!-- JS, Popper.js, and jQuery -->
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"
integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj"
crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js#1.16.0/dist/umd/popper.min.js"
integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo"
crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js"
integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI"
crossorigin="anonymous"></script>
<!-- ADDING INDEX.JS -->
<script src="/js/sidebar.js"></script>
<script src="/js/index.js"></script>
</body>
</html>
style.css
/* ---------------- SETTING CSS PROPERTIES OF PROFILE PAGE AND SIDE BAR---------------- */
body {
margin: 0;
font-family: "Lato", sans-serif;
}
.sidebar {
margin: 0;
padding: 0;
width: 200px;
background-color: #f1f1f1;
position: fixed;
height: 100%;
overflow: auto;
}
.sidebar a {
display: block;
color: black;
padding: 16px;
text-decoration: none;
}
.sidebar a.active {
background-color: #4CAF50;
color: white;
}
.sidebar a:hover:not(.active) {
background-color: #555;
color: white;
}
div.content {
margin-left: 200px;
padding: 1px 16px;
height: 1000px;
}
#media screen and (max-width: 700px) {
.sidebar {
width: 100%;
height: auto;
position: relative;
}
.sidebar a {float: left;}
div.content {margin-left: 0;}
}
#media screen and (max-width: 400px) {
.sidebar a {
text-align: center;
float: none;
}
}
.editadminprofile{
float: right;
}
/* ---------------- SETTING CSS PROPERTIES OF MANAGE PLAYERS PAGE---------------- */
.showplayers{
margin-right: 30%;
margin-top: 5%;
float: right;
width: 15%;
}
.addplayers{
margin-right: 3%;
margin-top: 5%;
float: right;
width: 15%;
}
/* ---------------- SETTING CSS PROPERTIES OF TABLE OF MANAGE PLAYER PAGE ---------------- */
table{
table-layout: fixed;
}
table th, table td {
overflow: hidden;
}
th{
width: 5%;
}
Screenshot
Any solution please ?
If you just use left: 0, top: /* how far you want the sidebar to be from the top of page */ with position: fixed, that should keep it from moving.

Why is html2canvas not exporting my JavaScript workspace?

I'm making an workspace where you can adjust divs with javascript by width, left and height. But whenever I try to export the main ID (the workspace for the user). html2canvas does not detect its content. I'm able to convert the paramater divs with html2canvas. But not the main ID that I need to convert? Can someone help me out? Is it because I adjust the divs with Javascript? I've put the code below. Thanks in advance!
I've put the html2canvas function at the bottom of the HTML page to make it more clear. The JavaScript file is just filled with the parameters of my interface.
The code that I'm talking about that's not working is:
<script>
html2canvas(document.querySelector("#main")).then(canvas => {
document.body.appendChild(canvas)
});
</script>
document.onclick = function(){
//Breedte vlak 1
var vlak2Left = -5;
var vlak3Left = 68;
var vlak4Left = 55;
//Hoogtes
var sliderValue2 = document.getElementById("hoogte1").value;
var sliderValue6 = document.getElementById("hoogte4").value;
var sliderValue8 = document.getElementById("hoogteCanvas").value;
var sliderValue10 = document.getElementById("hoogte23").value;
//Breedtes
var sliderValue1 = document.getElementById("breedte1").value;
var sliderValue3 = document.getElementById("breedte2").value;
var sliderValue4 = document.getElementById("breedte3").value;
var sliderValue7 = document.getElementById("breedte4").value;
var sliderValue9 = document.getElementById("breedteCanvas").value;
//X-meter
var sliderValue5 = document.getElementById("xmeter3").value;
var vlak2Total = Number(vlak2Left)+Number(sliderValue1);
var vlak3Total = Number(vlak3Left)+Number(sliderValue1)+Number(sliderValue3)-Number(sliderValue5);
var vlak4Total = Number(vlak4Left)+Number(sliderValue1)+Number(sliderValue3)+Number(sliderValue4)-Number(sliderValue5);
document.getElementById("VLAK1").style.width = sliderValue1 + "px";
document.getElementById("VLAK2").style.left = vlak2Total + "px";
document.getElementById("VLAK3").style.left = vlak3Total + "px";
document.getElementById("VLAK4").style.left = vlak4Total + "px";
//Hoogte vlak 1
document.getElementById("VLAK1").style.height = sliderValue2 + "px";
//Breedte vlak 2
document.getElementById("VLAK2").style.width = sliderValue3 + "px";
document.getElementById("VLAK3").style.left = vlak3Total + "px";
//Hoogte vlak 2+3
document.getElementById("VLAK2").style.height = sliderValue10 + "px";
document.getElementById("VLAK3").style.height = sliderValue10 + "px";
//Breedte vlak 3
document.getElementById("VLAK3").style.width = sliderValue4 + "px";
document.getElementById("VLAK4").style.left = vlak4Total + "px";
//X-meter vlak 3
document.getElementById("VLAK3").style.right = sliderValue5 + "px";
//Hoogte vlak 4
document.getElementById("VLAK4").style.height = sliderValue6 + "px";
//Breedte vlak 4
document.getElementById("VLAK4").style.width = sliderValue7 + "px";
//Hoogte canvas
document.getElementById("main").style.height = sliderValue8 + "px";
//Breedte canvas
document.getElementById("main").style.width = sliderValue9 + "px";
//Values tonen
document.getElementById("valueBreedte1").innerHTML = sliderValue1;
document.getElementById("valueHoogte1").innerHTML = sliderValue2;
document.getElementById("valueBreedte2").innerHTML = sliderValue3;
document.getElementById("valueBreedte3").innerHTML = sliderValue4;
document.getElementById("valueXmeter3").innerHTML = "-" + sliderValue5;
document.getElementById("valueHoogte4").innerHTML = sliderValue6;
document.getElementById("valueBreedte4").innerHTML = sliderValue7;
document.getElementById("canvasHoogte").innerHTML = sliderValue8;
document.getElementById("canvasBreedte").innerHTML = sliderValue9;
}
html {
font-family: Helvetica, Arial, sans-serif;
}
#main {
overflow: hidden;
/* width: 1860px;*/
width: 600px;
height: 600px;
position: absolute;
border: 3px solid rgba(0, 0, 0, 0.397);
}
.grid {
display: grid;
grid-template-columns: repeat(5, 1fr);
grid-template-rows: 1fr;
grid-column-gap: 0px;
grid-row-gap: 0px;
}
.parameters1 {
grid-area: 1 / 1 / 2 / 2;
}
.parameters2 {
grid-area: 1 / 2 / 2 / 3;
}
.parameters3 {
grid-area: 1 / 3 / 2 / 4;
}
.parameters4 {
grid-area: 1 / 4 / 2 / 5;
}
.parameters5 {
grid-area: 1 / 5 / 2 / 6;
}
#VLAK1,
#VLAK2,
#VLAK3,
#VLAK4 {
position: absolute;
margin: 0;
}
#VLAK1 {
background-color: #e28e8e;
width: 100px;
height: 300px;
z-index: -1;
}
#VLAK2 {
background-color: #f3de7f;
width: 100px;
height: 300px;
left: 95px;
transform: skewX(30deg);
z-index: -2;
}
#VLAK3 {
background-color: rgb(176, 241, 168);
width: 100px;
height: 300px;
left: 269px;
transform: skewX(-30deg);
z-index: -3;
}
#VLAK4 {
background-color: #c3c3c3;
width: 100px;
height: 300px;
left: 356px;
z-index: -4;
}
p {
margin: 0;
}
.slidecontainer {
width: 10%;
/* Width of the outside container */
}
<!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" type="text/css" href="theme.css">
<script type="text/javascript" src="script.js"></script>
<script src="html2canvas.min.js"></script>
<title>4 VLAKKEN</title>
</head>
<body>
<!--SLIDERS-->
<div class="grid">
<div class="parameters1">
<p>Breedte vlak 1:</p>
<p id="valueBreedte1">100</p>
<input type="range" id="breedte1" value="100" min="100" max="600">
<br><br>
<p>Hoogte vlak 1:</p>
<p id="valueHoogte1">300</p>
<input type="range" id="hoogte1" value="300" min="173" max="600">
</div>
<div class="parameters2">
<p>Breedte vlak 2:</p>
<p id="valueBreedte2">100</p>
<input type="range" id="breedte2" value="100" min="100" max="300">
<br><br>
<p>Hoogte vlak 2+3:</p>
<p id="valueHoogte23">300</p>
<input type="range" id="hoogte23" value="300" min="300" max="600">
</div>
<div class="parameters3">
<p>Breedte vlak 3:</p>
<p id="valueBreedte3">100</p>
<input type="range" id="breedte3" value="100" min="100" max="300">
<br><br>
<p>X-meter vlak 3:</p>
<p id="valueXmeter3">-0</p>
<input type="range" id="xmeter3" value="0" min="0" max="200">
</div>
<div class="parameters4">
<p>Breedte vlak 4:</p>
<p id="valueBreedte4">100</p>
<input type="range" id="breedte4" value="100" min="100" max="600">
<br><br>
<p>Hoogte vlak 4:</p>
<p id="valueHoogte4">300</p>
<input type="range" id="hoogte4" value="300" min="0" max="600">
</div>
<div class="parameters5">
<p>Breedte canvas:</p>
<p id="canvasBreedte">600</p>
<input type="text" id="breedteCanvas" value="600" min="0" max="1860">
<br><br>
<p>Hoogte canvas:</p>
<p id="canvasHoogte">600</p>
<input type="text" id="hoogteCanvas" value="600" min="0" max="600">
</div>
</div>
<br><br>
<div ID="main">
<div id="VLAK1"></div>
<div id="VLAK2"></div>
<div id="VLAK3"></div>
<div id="VLAK4"></div>
</div>
<script>
html2canvas(document.querySelector("#main")).then(canvas => {
document.body.appendChild(canvas)
});
</script>
</body>
</html>

javascript/jquery onChange function for div.text to update form hidden field value

My Classic ASP cart page uses divs for a quantity selector within a form:
<form action="/update-cart/" method="post">
<div class="quantity-selector detail-info-entry">
<div class="detail-info-entry-title">Quantity</div>
<div class="entry number-minus"> </div>
<div class="entry number">1</div>
<div class="entry number-plus"> </div>
</div>
</div>
</form>
when - or + is clicked the 1 will update as expected. the code to do this is this:
$('.number-plus').on('click', function(){
var divUpd = $(this).parent().find('.number'), newVal = parseInt(divUpd.text(), 10)+1;
divUpd.text(newVal);
});
$('.number-minus').on('click', function(){
var divUpd = $(this).parent().find('.number'), newVal = parseInt(divUpd.text(), 10)-1;
if(newVal>=1) divUpd.text(newVal);
});
What is the easiest way to post the content of the div with class "number" above when a form is submitted. Do i use:
<input type="hidden" id="Num" name="Num" value="" />
Or another way. Either way, how can this be done easily as I cannot get the variable "newVal" to populate the hidden field.
Thanks
This demo has 2 features of note.
The following are done with HTML and inline JS (e.g. onchange='...)
<input>s .number-minus and number-plus
<output> .number displays the sum of .number-minus and .number-plus
As requested, the sum of .number-minus and .number-plus is stored in a <input [hidden]> named .secret. This value was derived from <output> value by using jQuery (overkill IMO). `
$(function() {
$('#pos, #neg').on('change', function(event) {
var cnt = $('#counter').val();
$('#secret').val(cnt);
console.log('Secret: ' + secret.value);
});
});
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>javascript/jquery onChange function for div.text to update form hidden field value</title>
<meta name="description" content="SO33312004">
<style>
.detail-info-entry-title,
#pos,
#neg {
font-variant: small-caps;
}
.entry {
padding: 3px;
margin: 0 5px;
width: 48px;
line-height: 1.6;
border: 2px solid #00E;
border-radius: 8px;
display: table-cell;
}
#counter {
font-weight: 900;
margin: auto;
display: table-cell;
height: 24px;
}
#form33312004 {
color: #0CF;
background: hsla(180, 100%, 10%, 1);
width: 33%;
height: 30%;
text-align: center;
vertical-align: middle;
display: table-row;
}
.field {
width: 50px;
display: table-cell;
}
footer {
font-size: .75em;
text-align: center;
}
</style>
</head>
<!--http://stackoverflow.com/questions/33312004/javascript-jquery-onchange-function-for-div-text-to-update-form-hidden-field-val-->
<body>
<form id="form33312004" submit="return false" oninput="counter.value = parseInt(pos.value, 10) - parseInt(neg.value, 10)">
<fieldset class="quantity-selector detail-info-entry">
<legend class="detail-info-entry-title">Quantity</legend>
<div class="field">
<input type="number" id="pos" min="0" max="999" step="any" value="0" class="entry number-plus">
<label for="pos">Positive</label>
</div>
<output for='pos neg' id="counter" name="counter" class="entry number">0</output>
<div class="field">
<input type="number" id="neg" min="0" max="999" step="any" value="0" class="entry number-minus">
<label for="neg">Negative</label>
</div>
</fieldset>
<input id="secret" type="hidden">
</form>
<div class="field">
<footer>Observe the hidden input's value thru
<br/>the console. (<b>F12</b> then the <b>Console</b> tab).</footer>
<script sr="https://ajax.aspnetcdn.com/ajax/jquery/jquery-2.1.4.min.js"></script>
</body>
</html>
With pure JS:
document.getElementById("Num").value = < variable name >
With jQuery(not 100% sure)
$("Num").value(< variable name>)
So I solved the problem myself.
I added the following line:
$("#Num").val(newVal);
To both the jquery functions for the + and - divs as follows:
$('.number-plus').on('click', function(){
var divUpd = $(this).parent().find('.number'), newVal = parseInt(divUpd.text(), 10)+1;
divUpd.text(newVal);
$("#Num").val(newVal);
});
$('.number-minus').on('click', function(){
var divUpd = $(this).parent().find('.number'), newVal = parseInt(divUpd.text(), 10)-1;
if(newVal>=1) divUpd.text(newVal);
$("#Num").val(newVal);
});
I am sure I had tried this but after thought I may have omitted the $ at the beginning. Always something simple in the end

JavaScript application is not calculating, please?

I am a beginner at JavaScript and I have been working on this very simple project for a couple of days. It is supposed to allow you to calculate the area and perimeter of a rectangle, but despite how much I tweaked the code, it will not calculate when I enter numbers. It should just be a simple user interface that allows you to input into two text boxes:
var $ = function (id) {
return document.getElementById(id);
}
var calculate_click = function () {
var width = parseFloat($("width").value);
var length = parseFloat($("length").value);
$("area").value = "";
$("perimeter").value = "";
if (isNaN(width) || width <= 0) {
alert("Width must be a valid number and greater than zero.");
}
else if (isNaN(length) || width <= 0) {
alert("Length must be a valid number and greater than zero.");
} else {
var area = width * length;
var perimeter = 2 * width + 2 * length;
$("area").value = area;
$("perimeter").value = perimeter;
}
window.onload = function () {
$("calculate").onclick = calculate_click;
$("length").focus();
}
}
body {
font-family: Arial, Helvetica, sans-serif;
background: #333366; }
#content {
width: 450px;
margin: 10px auto;
padding: 5px 20px;
background: white;
border: thin solid black; }
#salesTax, #total {
color: black; }
#taxCalc label {
display: block;
width: 6em;
text-align: right;
padding-right: 1em;
float: left; }
#taxCalc input {
display: block;
float: left; }
#taxCalc br {
clear: left; }
​
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Area and Perimeter Calculator</title>
<link rel="stylesheet" type="text/css" href="sales_tax.css" />
<script type="text/javascript" src="sales_tax.js"></script>
</head>
<body>
<div id="content">
<h2>Area and Perimeter Calculator</h2>
<p>Enter the values below and click "Calculate".</p>
<div id="taxCalc">
<label for="length">Length:</label>
<input type="text" id="length" /><br />
<label for="width">Width:</label>
<input type="text" id="width" /><br />
<label for="area">Area:</label>
<input type="text" id="area" disabled="disabled" /><br />
<label for="perimeter">Perimeter:</label>
<input type="text" id="total" disabled="disabled" /><br />
<label> </label>
<input type="button" id="calculate" value="Calculate" /><br />
</div>
</div>
</body>
</html>
​
If anyone can please help even a little, I would genuinely appreciate it,
Thank you.
There were two problems with your script (Well technically three, but I think the missing v at the beginning was a copy/paste mistake.
1st: The window.onload functions needs to be outside calculate_click. It never gets called, because the calculate_click never gets called.
2nd: The input for perimeter, had id="total", but you were calling $("perimeter"). This is fixed in the jsfiddle.
Here is a working form.

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