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JavaScript isset() equivalent
In PHP you can do if(isset($array['foo'])) { ... } . In JavaScript you often use if(array.foo) { ... } to do the same, but this is not exactly the same statement. The condition will also evaluate to false if array.foo does exists but is false or 0 (and probably other values as well).
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How to execute a function when page has fully loaded?
I need to execute some JavaScript code when the page has fully loaded. This includes things like images.
13 Answers
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How to turn a String into a JavaScript function call? [duplicate]
...tings.functionName does. window[window.settings.functionName] does now. In javascript, object members can be access with a string the same way you do with an array. Assuming your function is declared in the global scope, it become a function in the window object. You can call it using a string.
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How to perform case-insensitive sorting in JavaScript?
I have an array of strings I need to sort in JavaScript, but in a case-insensitive way. How to perform this?
15 Answers
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How to globally replace a forward slash in a JavaScript string?
How to globally replace a forward slash in a JavaScript string?
10 Answers
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Prevent any form of page refresh using jQuery/Javascript
...lemented via window.onbeforeunload.
For example:
<script type="text/javascript">
window.onbeforeunload = function() {
return "Dude, are you sure you want to leave? Think of the kittens!";
}
</script>
The user will be prompted with the message, and given an option to...
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...
Trigger a button click with JavaScript on the Enter key in a text box
I have one text input and one button (see below). How can I use JavaScript to trigger the button's click event when the Enter key is pressed inside the text box?
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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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Remove all multiple spaces in Javascript and replace with single space [duplicate]
...atically replace all instances of multiple spaces, with a single space, in Javascript?
4 Answers
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