javascript Archives - Page 258 of 258

How do I remove a property from a JavaScript object?

Say I create an object as follows: let myObject = { "ircEvent": "PRIVMSG", "method": "newURI", "regex": "^http://.*" }; How should I remove the ...

April 9, 2022
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var functionName = function() {} vs function functionName() {}

I’ve recently started maintaining someone else’s JavaScript code. I’m fixing bugs, adding features and also trying to tidy up the code and make ...

April 9, 2022
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How to check whether a string contains a substring in JavaScript?

This question’s answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. ...

April 9, 2022
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How do JavaScript closures work?

This question’s answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. ...

April 9, 2022
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How do I redirect to another webpage?

This question’s answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. ...

April 9, 2022
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What does “use strict” do in JavaScript, and what is the reasoning behind it?

Recently, I ran some of my JavaScript code through Crockford’s JSLint, and it gave the following error: Problem at line 1 character 1: ...

April 9, 2022
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How do I check if an element is hidden in jQuery?

Is it possible to toggle the visibility of an element, using the functions .hide(), .show() or .toggle()? How would you test if an ...

April 9, 2022
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How can I remove a specific item from an array?

How do I remove a specific value from an array? Something like: array.remove(value); // removes all elements with value I have to use ...

April 9, 2022
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