Can anyone help :
The scenario is when the user1 click the button it will increment
Example : user1 clicks 5 times and then the user2 when it clicks the next number will be 6. and then when the user1 click again it will be 7
i think it works with ajax and save to db, anyone can help me how to do it. Im a begginer in ajax and database
Here is the code i just know:
<html>
<body>
<button type="button" onClick="counter()">Next</button>
<p>Number: <a id="counter">0</a></p>
</body>
</html>
<script type="text/javascript">
var counter= 0;
function counter() {
counter += 1;
document.getElementById("counter").innerHTML = counter;
}
</script>
Please use session storage to store the incremental values.
like store the values using sessionStorage.setItem("userclicks",variablevalue);
<!DOCTYPE html>
<!--
To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor.
-->
<html>
<head>
<title>TODO supply a title</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width">
<script type="text/javascript">
function load()
{
if(localStorage.getItem("counter")!=null)
{
counter = Number(localStorage.getItem("counter"));
document.getElementById("counterValue").innerHTML = counter;
}
}
var counter= 0;
function counterFn() {
counter = Number(localStorage.getItem("counter"));
console.log(counter);
counter += 1;
localStorage.setItem("counter",counter);
document.getElementById("counterValue").innerHTML = counter;
}
</script>
</head>
<body onload="load();">
<button type="button" onclick="counterFn()">Next</button>
<p>Number:<a id="counterValue">0</a></p>
</body>
</html>
<!DOCTYPE html>
<!--
To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor.
-->
<html>
<head>
<title>TODO supply a title</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width">
<script type="text/javascript">
function load()
{
if(localStorage.getItem("counter")!=null)
{
counter = Number(localStorage.getItem("counter"));
document.getElementById("counterValue").innerHTML = counter;
}
}
var counter= 0;
function counterFn() {
counter = Number(localStorage.getItem("counter"));
console.log(counter);
counter += 1;
localStorage.setItem("counter",counter);
document.getElementById("counterValue").innerHTML = counter;
}
</script>
</head>
<body onload="load();">
<button type="button" onclick="counterFn()">Next</button>
<p>Number:<a id="counterValue">0</a></p>
</body>
</html>
Related
When i use the function to check if number is positive or negative it works fine but when i try to do it again nothing happens i have to refresh the whole page to make it work again. Any help is welcome!
const userNum = document.querySelector(".user-input").value;
const checkBtn = document.querySelector(".check-input");
const result = document.querySelector(".result");
function checkNum() {
if (userNum > 0) {
result.innerHTML = "Positive!!"
}
else if (userNum < 0) {
result.innerHTML = "Negativeee!!"
}
else if (userNum < 0) {
result.innerHTML = "Number is NULL"
}
else {
result.innerHTML = "Enter a Number!!"
}
return false;
}
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="style.css">
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div class="container">
<div class="intro">
<h1>A Program to Check if number is <br></h1>
<h2>Positive, Negative or Null</h2>
</div>
<div class="check-number-type">
<input type="text" class="user-input">
<button onclick="checkNum()" class="check-input">Check</button>
</div>
<div class="show-result">
<p class="result"></p>
</div>
</div>
</body>
<script src="/script.js"></script>
</html>
The reason why you say you have to "reload" the page everytime is because your code that extracts the input value was placed outside of your checkNum function that determines if it's positive or negative.
You only retrieve the input once, when the script starts, instead of getting a fresh copy everytime you enter the checkNum function.
Just move this:
const userNum = document.querySelector(".user-input").value;
Inside the checkNum() function.
I'm Tring to get a user to chose with 2 buttons, which site will be presented in iframe tag.
Option1.html does work as default, but Option1.html & Option2.html do not work with user button.
When Clicking the buttons, I Get the default browser error "Can’t reach this page".
Please Take into account, that I a beginner with HTML and JS.
<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Module choose</title>
</head>
<body>
<p>Click to choose Module</p>
<button onclick="myFunction1()">Option1</button>
<script>
function myFunction1() {
document.getElementById("myframe").src = "Option1.htm";
}
</script>
<button onclick="myFunction2()">Option2</button>
<script>
function myFunction2() {
document.getElementById("myframe").src = "Option2.htm";
}
</script>
<br><br>
<iframe id="myframe" src="Option1.htm" width="1600" height="1600"></iframe>
</body>
</html>
Ok first make a folder and put this code in that and make another html document named same as given in your code...
Or see this
<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Module choose</title>
</head>
<body>
<p>Click to choose Module</p>
<button onclick="myFunction1()">Option1</button>
<script>
function myFunction1() {
document.getElementById("myframe").src = "index.html";
}
</script>
<button onclick="myFunction2()">Option2</button>
<script>
function myFunction2() {
document.getElementById("myframe").src = "index2.html";
}
</script>
<br><br>
<iframe id="myframe" src="Option1.htm" width="1600" height="1600"></iframe>
</body>
</html>
This will be the main page...
And this will be inbdex.html. When user clicks option1 then this will be shown...
<!DOCTYPE html>
<html lang = "en">
<head>
<title>Stopwatch</title>
</head>
<body>
<div>Seconds: <span id="time">0</span></div>
<input type="button" id="startTimer" value="Start Timer" onclick="start();"><br/>
<input type="button" id="stopTimer" value="Stop Timer" onclick="stop();"><br/>
<script>
var timeElapsed = 0;
var timerID = -1;
function tick() {
timeElapsed++
document.getElementById("time").innerHTML = timeElapsed;
}
function start() {
if(timerID == -1){
timerID = setInterval(tick, 1000);
}
}
function stop() {
if(timerID != -1){
clearInterval(timerID)
timerID = -1
}
}
function reset() {
stop();
timeElapsed = -1;
tick()
}
</script>
</body>
</html>
And the below thing will be index2.html. So when user clicks option2 then this will be shown!
<html>
this is other page
</html>
I'm trying to create a code that can increase and decrease via clcik of a button
html code but the problem is i cant get it to function I've tried different options.
<!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="styles.css">
<title>Document</title>
</head>
<body>
<div id="body">
<h1>COUNTER</h1>
<span id="time">0</span><br>
<button id="lower" onclick="reduceone()" type="button">LOWER COUNT</button><BR>
<button id="add" onclick="addone()" type="button">ADD COUNT</button>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="index.js"></script>
</body>
</html>
javascript code:
$("#add").click(function (){
let count = 0;
count ++;
$("#time").text(count);
});
$(#lower).click(function(){
let count = 0;
count --;
$("#time").text(count)
});
Try this
let count = 0;
$("#add").click(function (){
count ++;
$("#time").text(count);
});
$(#lower).click(function(){
count --;
$("#time").text(count)
});
You have to make variable (count ) a global variable so all functions can access his value . If you put variable(count) in a function then only that function can access his value . Hope you understand
You need to share the state between two functions so each of them could see the shared state that they are changing.
Also, all id or class names should be between inverted commas like that "#lower"
let count = 0; // Shared state that both functions can see
$("#add").click(function (){
count++;
$("#time").text(count);
});
$("#lower").click(function(){ // "#lower" not #lower
count--;
$("#time").text(count)
});
Ok, this might be quite hard for me to explain, but I will give it a go. I have two HTML pages: form.html & display.html. The form page has an input which obtains a value and then puts it into local storage once the form is submitted. After the form submission, the user will be taken to the display page, which will then retrieve the input value from the previous page from local storage and then displays the value inside the input field on the display page. The display page will later act as a job page which will display a list of jobs which is filterable by the value inside the input field on the same page. I can get the filter function to work by using onkeyup on the input field, but I what I can't make work is the filter function with the input value from the previous page by using something like onload. The reason why I am using two pages is that I will later use this code on a website which will have a search box on the landing page, and then will be directed to the Jobs page with filtered results. I am sorry if this was really hard to understand, I will post the code below so you might better understand.
Many thanks to anyone who takes time out of their day to help me with this problem, it is much appreciated.
form.html
<!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">
<title>Document</title>
<script>
function passValues() {
var firstName = document.getElementById("txt").value;
localStorage.setItem("textValue", firstName);
return false;
}
</script>
</head>
<body>
<form action="display.html">
<input type="text" id="txt" />
<input type="submit" value="Click" onclick="passValues();" />
</form>
</body>
</html>
display.html
<!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">
<title>Document</title>
</head>
<body>
<h1>Tokyo Expat Job Search</h1>
<input onload="filter()" onkeyup="filter()" id="result" type="text">
<ul id="Menu">
<li>English Techer</li>
<li>Waiter/Waitress</li>
<li>Developer</li>
<li>Banker</li>
<li>Designer</li>
<li>Logistics</li>
</ul>
<script>
function filter() {
var filterValue, input, ul, li, a, i;
input = document.getElementById("result");
filterValue = input.value.toUpperCase();
ul = document.getElementById("Menu");
li = ul.getElementsByTagName("li");
for (i = 0; i < li.length; i++) {
a = li[i].getElementsByTagName("a")[0];
if (a.innerHTML.toUpperCase().indexOf(filterValue) > -1) {
li[i].style.display = "";
} else {
li[i].style.display = "none";
}
}
}
document.getElementById("result").value = localStorage.getItem("textValue");
</script>
</body>
</html>
Try to add the listener to window.onload? The input does not have such an event.
window.addEventListener('load', filter, false)
I made a simple HTML with JS inside, and its about add 1 to variable and keep running until user gets 1 by rng(random number generator). Here's the code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script type="text/javascript">
function clicked(){
var num = Math.floor((Math.random() * 100) + 1);
var click = 0;
click = click+1;
if(num == 1){
document.getElementById("print").innerHTML="Congratz! You did it in "+click+" times!";
document.getElementById("press").disabled = true;
}
else{
document.getElementById("print").innerHTML="Not the right number! You 've pressed "+click+" times!";
}
}
</script>
</head>
<h1>TEST YOUR LUCK!</h1>
<body>
<input type="button" value="Press Me!" id="press" onclick="clicked()">
<div id="print"></div>
</body>
</html>
At this code, click = click+1 don't work and click is stuck at 1. What should I do?
The reason your click stuck to 1 is whenever function called you are declaring
click = 0, so it is initialized every time you press the button. So just declare var click outside of function clicked() and see the magic.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script type="text/javascript">
var click = 0;
function clicked(){
var num = Math.floor((Math.random() * 100) + 1);
click = click+1;
if(num == 1){
document.getElementById("print").innerHTML="Congratz! You did it in "+click+" times!";
document.getElementById("press").disabled = true;
}
else{
document.getElementById("print").innerHTML="Not the right number! You 've pressed "+click+" times!";
}
}
</script>
</head>
<h1>TEST YOUR LUCK!</h1>
<body>
<input type="button" value="Press Me!" id="press" onclick="clicked()">
<div id="print"></div>
</body>
</html>