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Checking if a key exists in a JavaScript object?
How do I check if a particular key exists in a JavaScript object or array?
22 Answers
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Executing injected by innerHTML after AJAX call
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JavaScript inserted as DOM text will not execute. However, you can use the dynamic script pattern to accomplish your goal. The basic idea is to move the script that you want to execute into an external file and create a scrip...
Run JavaScript when an element loses focus
I have a standard HTML input that I want to run JavaScript code when it loses focus. Sadly my Google searches did not reveal how to do this.
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Can scripts be inserted with innerHTML?
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As zombat suggest, use a Javascript framework to load the external script, don't try to reinvent the wheel. JQuery makes this extremely easy, just include JQuery and call: $.getScript(url). You can also provide a callback function that will get execu...
How to get the HTML for a DOM element in javascript
Imagine I have the following HTML:
10 Answers
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Detect the Enter key in a text input field
... @jQuerybeast It's not needed, and event.keyCode is a Number, so JavaScript will take the same steps with == or ===.
– alex
Aug 15 '11 at 1:47
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Is jQuery “each()” function synchronous?
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Yes, the jQuery each method is synchronous. Nearly ALL JavaScript is synchronous. The only exceptions are AJAX, timers (setTimeout and setInterval), and HTML5 Web Workers.
Your problem is probably somewhere else in your code.
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Regular expression to get a string between two strings in Javascript
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In Javascript, you actually need to use ([\s\S]*?) rather than (.*?).
– Qian Chen
Dec 18 '18 at 11:07
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Get Substring between two characters using javascript
I am trying to extract a string from within a larger string where it get everything inbetween a ':' and a ';'.
16 Answers
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What is the difference between screenX/Y, clientX/Y and pageX/Y?
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In JavaScript:
pageX, pageY, screenX, screenY, clientX, and clientY returns a number which indicates the number of physical “CSS pixels” a point is from the reference point. The event point is where the user clicked, the r...