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Parse an HTML string with JS
...DOMParser once and then reuse that same object throughout the rest of your script.
– Jack Giffin
May 19 '18 at 17:36
1
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Using JQuery to check if no radio button in a group has been checked
...a radio button group has been checked, so that I can give the users an javascript error if they forgot to check a option.
...
Get attribute name value of
...getAttribute("name");
My results:
jQuery: 300k operations / second
JavaScript: 11,000k operations / second
You can test for yourself here. The "plain JavaScript" vesion is over 35 times faster than the jQuery version.
Now, that's just for one operation, over time you will have more and more s...
Can you determine if Chrome is in incognito mode via a script?
Is it possible to determine if Google Chrome is in incognito mode via a script?
10 Answers
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HTML: How to limit file upload to be only images?
...n still change it from the dropdown and it will show all files. So the Javascript part validates whether or not the selected file is an actual image.
<div class="col-sm-8 img-upload-section">
<input name="image3" type="file" accept="image/*" id="menu_images"/>
<img id="men...
Difference between setTimeout with and without quotes and parentheses
I am learning JavaScript and I have learned recently about JavaScript timing events. When I learned about setTimeout at W3Schools , I noticed a strange figure which I didn’t run into before. They are using double quotes and then call the function.
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Resetting a setTimeout
...a.org/En/Window.setTimeout
Note: setTimeout and clearTimeout are not ECMAScript native methods, but Javascript methods of the global window namespace.
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Javascript call() & apply() vs bind()?
...is is very useful when working with callbacks:
function sayHello(){
alert(this.message);
}
var obj = {
message : "hello"
};
setTimeout(sayHello.bind(obj), 1000);
To achieve the same result with call would look like this:
function sayHello(){
alert(this.message);
}
...
File Upload without Form
...ace the HTML Code.
Step 2: In the HTML Code Page Bottom(footer)Create Javascript: and put Jquery Code in Script tag.
Step 3: Create PHP File and php code copy past. after Jquery Code in $.ajax Code url apply which one on your php file name.
JS
//$(document).on("change", "#avatar", function() { ...
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中文网拓展
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