Creating Multiple things upon click - javascript

$('#add').click(function () {
$('#taskCont').append('<div class="task"></div>');
$('.task').append('<input type="checkbox">', '<div></div>', '<small>Delete</small>');
});
.task{
width : 200px;
height : 50px;
background: red;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<p id="add">add</p>
<div id="taskCont"></div>
Click on the add button multiple time. How can I get rid of this problem?

You're appending to .task each time which selects more divs as they are added. Instead, create a variable each time and append that.
$('#add').click(function() {
let task = $('<div class="task"></div>')
task.append('<input type="checkbox">', '<div></div>', '<small>Delete</small>')
$('#taskCont').append(task)
});
.task {
width: 200px;
height: 50px;
background: red;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<p id="add">add</p>
<div id="taskCont"></div>

You only want to append to the last task?
$('.task:last-of-type').append(

Related

href link not working with innerHTML script with "onmouseover change text" and onmouseout

My goal is to have text change onmouseover from "hello" (without a link) to "Google" and provide an 'href' on the resulting "Google" text, and then revert to "hello" onmouseout without a link.
The code below works in changing the text from "hello" to "Google" but,
the link on "Google" does not work (even though I can right-click on "Google" and open the link on another tab)
the text does not change back to "hello" onmouseout.
Thanks for your help in advance!
Here is my code:
<style>
.container {
margin-top: 6vw;
margin-left: 40%;
margin-right: 40%;
}
</style>
<div class="container">
<h1>
<div class="hello" id="hello1" onmouseover="changeText()" onmouseout="changeText(this,'Hello.')">Hello.</div>
</h1>
</div>
<script>
function changeText() {
if (document.getElementById("hello1")) {
a = document.getElementById("hello1")
a.innerHTML = 'Google'
}
}
</script>
try this way onmouseout="this.innerHTML='Hello.';"
function changeText() {
if (document.getElementById("hello1")) {
a = document.getElementById("hello1")
a.innerHTML = 'Google'
}
}
.container {
margin-top: 6vw;
margin-left: 40%;
margin-right: 40%;
}
<div class="container">
<h1>
<div class="hello" id="hello1" onmouseover="changeText()" onmouseout="this.innerHTML='Hello.';">Hello.</div>
</h1>
</div>
By changing a class of a parent tag, any and all child tags can be affected via CSS. Having the HTML ready when the page loads and then hiding it is better than constantly creating and destroying HTML for trivial effects.
The events "mouseenter" and "mouselrave" are handled by a property event handler and an event listener. Either one is sufficient, but avoid using attribute event handlers:
<div onmouselame="lameAttributeEventHandler()">...</div>
Details are commented in the example below
// Reference the <header>
const hdr = document.querySelector('.title');
/* This is a property event handler
// Whenever the mouse enters within the borders of
// the <header>:
// '.google' class is added
// '.hello' class is removed
*/
hdr.onmouseenter = function(event) {
this.classList.add('google');
this.classList.remove('hello');
};
/* This is an even listener
// Whenever the mouse exits the <header> the
// opposite behavior of the previous handler
// happens
*/
hdr.addEventListener("mouseleave", function(event) {
this.classList.add('hello');
this.classList.remove('google');
});
.title {
height: 50px;
margin-top: 3vh;
border: 3px solid black;
text-align: center;
}
h1 {
margin: auto 0;
}
.hello span {
display: inline-block;
}
.hello a {
display: none;
}
.google a {
display: inline-block;
}
.google span {
display: none;
}
<header class="title hello">
<h1>
<span>Hello</span>
Google
</h1>
</header>
You can try this, May it help u to solve the problem
<!DOCTYPE html>
<head>
<title>change text on mouse over and change back on mouse out
</title>
<style>
#box {
float: left;
width: 150px;
height: 150px;
margin-left: 20px;
margin-top: 20px;
padding: 15px;
border: 5px solid black;
}
</style>
</head>
<html>
<body>
<div id="box" onmouseover="changeText('Yes, this is Onmouseover Text')" onmouseout="changeback('any thing')" >
<div id="text-display" >
any thing
</div>
</div>
<script type="text/javascript">
function changeText(text)
{
var display = document.getElementById('text-display');
display.innerHTML = "";
display.innerHTML = text;
}
function changeback(text)
{
var display = document.getElementById('text-display');
display.innerHTML = "";
display.innerHTML = text;
}
</script>
</body>
</html>

How to change content of div on hover using JQuery/Javascript

I'm trying to change the contents of a div when it's hovered over using JQuery. I've seen answers on stack overflow, but I can't seem to get it working.
I've tried
$( "imgDiv" ).mouseover(
function() {
$("tdiv").textContent = "hovering";
},
function() {
$("tdiv").textContent = 'title';
}
);
I've also replaced "mouseover" with "hover". I've used a variable and the actual div in place of "imgDiv".
This is what my code looks like:
imgDiv = document.getElementById('imgDiv');
tDiv = document.getElementById('titleDiv');
$( "imgDiv" ).mouseover(
function() {
$("tdiv").textContent = "hovering";
}, function() {
$("tdiv").textContent = 'title';
}
);
body {
background: white;
padding: 20px;
font-family: Helvetica;
}
#imgDiv {
width: 100px;
height: 100px;
background-color: pink;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="imgDiv">
<div id=titleDiv>title</div>
</div>
You can use jQuery's .hover() function along with the .text() function to do what you want. Also, no need for document.getElementById:
$("#imgDiv").hover(
function() {
$("#titleDiv").text("hovering");
},
function() {
$("#titleDiv").text('title');
}
);
body {
background: white;
padding: 20px;
font-family: Helvetica;
}
#imgDiv {
width: 100px;
height: 100px;
background-color: pink;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="imgDiv">
<div id="titleDiv">title</div>
</div>
You can target the div with jQuery, and store it's original value. On mouseout, you can restore it. Also using mouseenter reduces the number of times the logic processes as mouseover will fire for every mouse move over the element.
var $titleDiv = $('#titleDiv');
$("#imgDiv")
.on('mouseenter', function() {
$titleDiv.data('originalText', $titleDiv.text());
$titleDiv.text('hovering');
})
.on('mouseout', function() {
$titleDiv.text($titleDiv.data('originalText'));
});
body {
background: white;
padding: 20px;
font-family: Helvetica;
}
#imgDiv {
width: 100px;
height: 100px;
background-color: pink;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="imgDiv">
<div id="titleDiv">title</div>
</div>
First of all, replace $("imgDiv") with $("#imgDiv") to get the element with id (#) imgDiv.
Then $("tdiv") doesn't exist, you probably mean $("div") to select a <div>tag in your DOM.
And finally, $("tdiv").textContent doesn't exist. You can try $("div").html() or $("div").text() to get the <div> tag content
--
Quick reminder : jQuery documentation on selectors
$("div") will select the <div> tags
$(".element") will select tags with class="element"
$("#element") will select tags with id="element"
You need to try like this
$( "#imgDiv" ).mouseover(function() {
$("#titleDiv").text("hovering");
}).mouseleave( function() {
$("#titleDiv").text('title');
});
body {
background: white;
padding: 20px;
font-family: Helvetica;
}
#imgDiv {
width: 100px;
height: 100px;
background-color: pink;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="imgDiv">
<div id=titleDiv>title</div>
</div>
Easy solution,
var s = document.getElementsByTagName('div');
function out() {
s[0].innerHTML = 'hello';
}
function ibn() {
s[0].innerHTML = 'Myname';
}
<div onmouseout = 'out()' onmouseenter = 'ibn()'> Myname </div>
You cannot call reference a dom with pure Javascript and them manipulate it with jQuery - it will not work.
Try this:
$( "#imgDiv" ).mouseover(function() {
$("#titleDiv").text("hovering");
});
The titleDiv id has to be referenced in your code using "#", then the id name.
Also, use $("#name_of_id").text("your content") instead of .textContent()

Removing certain elements from a selector binded to the body

I have a click event binded to the body element but I don't want it to fire for when the user clicks on certain elements, that being when the element has an attribute of data-dropdown-target, however what I have tried isn't working, it always fires.
CodePen: http://codepen.io/anon/pen/ORQkrb
HTML:
<body>
<div class="foo">foo</div>
<div class="bar" data-dropdown-target="something">bar</div>
<div class="moo">moo</div>
</body>
CSS:
.foo, .bar, .moo {
padding: 10px;
margin: 5px;
}
.foo {
background-color: gray;
}
.bar {
background-color: teal;
}
.moo {
background-color: green;
}
JS:
$('body').not('[data-dropdown-target]').on('click', function(e) {
console.log('Hi!');
});
I assume this is because it is trying to remove body elements that have this attribute, rather than it's children - correct?
How do I go about stopping it from firing on children elements that have this attribute - do I have to loop through everything, as I would like to avoid that because of performance reasons, especially since it's on the body.
Actually your code try to bind event click on every <body> without data-dropdown-target attribute.
This could solve your problem :
$('body').on('click', function(e) {
if($(e.target).data('dropdown-target') || $(e.target).parents('[data-dropdown-target]').length !== 0) return false;
console.log('Hi!');
});
.foo, .bar, .moo {
padding: 10px;
margin: 5px;
}
.foo {
background-color: gray;
}
.bar {
background-color: teal;
}
.moo {
background-color: green;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<body>
<div class="foo">foo</div>
<div class="bar" data-dropdown-target="something">bar</div>
<div data-dropdown-target="something">
<div class="moo">moo</div>
</div>
</body>
The not selector just remove the body element if it has [data-dropdown-target] attribute.
Remove elements from the set of matched elements.
$('body').on('click', function(e) {
console.log('Hi!');
});
$('[data-dropdown-target]').on('click',function(e){
return false;
});

Manipulate connections between elements dropped on canvas

Here I have been able to drop elements onto a canvas and create connections between them. But every time I drag a dropped element within the canvas, the anchors do not move along with the dragged element. Instead when I try to create a connection from the isolated anchor to another element it immediately re-positions itself with its parent element. This is one issue and I would also like to delete the anchors/ connections whenever its parent element is deleted.
<!doctype html>
<html>
<head>
<script src="../lib/jquery.min.js"></script>
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
<script src="../lib/jquery-ui.min.js"></script>
<script src="../lib/jquery.jsPlumb-1.6.4-min.js"></script>
<style>
.chevron-toolbox{
position: absolute;
width: 72px;
height: 80px;
background-color: powderblue;
background-image: url("../dist/img/bigdot.png");
border: solid 3px red;
}
#dropArea{
cursor: pointer;
border: solid 1px gray;
width: 800px;
margin-left: 80px;
height: 400px;
position: relative;
overflow-x: scroll;
overflow-y: scroll;
}
.chevron {
position:absolute;
cursor:pointer;
width: 72px;
height: 80px;
background-color: powderblue;
background-image: url("../dist/img/bigdot.png");
}
</style>
</head>
<body>
<div class="chevron-toolbox" id="cId">
</div>
<div id="dropArea">
</div>
<button id="go">Double Click Me</button>
<script>
jsPlumb.ready(function(e)
{
jsPlumb.setContainer($('#dropArea'));
$(".chevron-toolbox").draggable
({
helper : 'clone',
cursor : 'pointer',
tolerance : 'fit',
revert : true
});
$("#dropArea").droppable
({
accept : '.chevron-toolbox',
containment : 'dropArea',
drop : function (e, ui) {
droppedElement = ui.helper.clone();
ui.helper.remove();
$(droppedElement).removeAttr("class");
jsPlumb.repaint(ui.helper);
$(droppedElement).addClass("chevron");
$(droppedElement).draggable({containment: "dropArea"});
$(droppedElement).appendTo('#dropArea');
setId(droppedElement);
var droppedId = $(droppedElement).attr('id');
var common = {
isSource:true,
isTarget:true,
connector: ["Flowchart"],
};
jsPlumb.addEndpoint(droppedId, {
anchors:["Right"]
}, common);
jsPlumb.addEndpoint(droppedId, {
anchors:["Left"]
}, common);
alert(droppedId);
//Delete an element on double click
var dataToPass = {msg: "Confirm deletion of Item"};
$(droppedElement).dblclick(dataToPass, function(event) {
alert(event.data.msg);
$(this).remove();
});
}
});
//Set a unique ID for each dropped Element
var indexer = 0;
function setId(element){
indexer++;
element.attr("id",indexer);
}
});
</script>
</body>
</html>
In order to properly manipulate the connections, you can use the connect method in jsPlumb placing anchors at desired points.
jsPlumb.connect({
source:'window2',
target:'window3',
paintStyle:{lineWidth:8, strokeStyle:'rgb(189,11,11 )'},
anchors:["Bottom", "Top"],
endpoint:"Rectangle"
});
This is merely an example. Following this pattern in your implementation will be useful when it comes to accessing details regarding those connections and deleting the connections alongside the elements

Ionic Event-LIsteners on-hold/on-tab Parent/Child Issue

In an cordova/ionic app there is a parent-div on which on-hold-listener is attached and a child-div which subscribed for on-tab events like so:
<div on-hold="doSomething()">
<div on-tap="doSomething2()">...</div>
</div>
From time to time it works but there have been situations in what on-tab was executed instead of on-hold when pressing time was bigger than 500ms.
Might this be done in a better way? Please take into consideration that child-div fills out parent completely and it should remain so.
Thanks in advance.
When you have a div parent of another div the events are propagated.
You can try by yourself here:
.c2 {
width: 200px;
height: 200px;
background-color: red;
}
.c1 {
width: 220px;
height: 220px;
background-color: yellow;
}
<div class="c1" onclick="alert('squareParent');">
<div class="c2" onclick="alert('squareChild');">
</div>
</div>
To avoid this you need to stop the propagation:
document.getElementById("c1").addEventListener('click', function(e) {
alert("c1");
}, false);
document.getElementById("c2").addEventListener('click', function(e) {
alert("c2");
e.stopPropagation();
}, false);
#c2 {
width: 200px;
height: 200px;
background-color: red;
}
#c1 {
width: 220px;
height: 220px;
background-color: yellow;
}
<div id="c1">
<div id="c2">
</div>
</div>
You could check more about javascript bubble if you want more information.
After experimenting with stopPropagation I came up with following answer that needs setTimeout to check for mouse/cursor is being holded.
When just clicking on the child-div(red) doSomething2 is alerted whereas holding onto child-div alerts doSomething of parent instead:
var holding = false;
var secondFunctionCall = false;
document.getElementById("c1").addEventListener('mousedown', function(e) {
holding = true;
setTimeout(function(){
if(holding){
secondFunctionCall = false;
alert("calling doSomething()");
}
},500);
}, false);
document.getElementById("c2").addEventListener('mousedown', function(e) {
holding = true;
secondFunctionCall = true;
}, false);
document.getElementById("c2").addEventListener('mouseup', function(e) {
holding = false;
if(secondFunctionCall){
alert("calling doSomething2()");
}
}, false);
#c2 {
width: 200px;
height: 200px;
background-color: red;
}
#c1 {
width: 220px;
height: 220px;
background-color: yellow;
}
<div id="c1">
<div id="c2">
</div>
</div>
When transfering this code into a cordova-app mouse-event types have to be replaced by touch-event types as it is answered here.

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