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How can I debug my JavaScript code? [closed]
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All modern browsers come with some form of a built-in JavaScript debugging application. The details of these will be covered on the relevant technologies web pages. My personal preference for debugging JavaScript is Firebug in Firefox. I'm not saying Firebug is better than any o...
Why is using onClick() in HTML a bad practice?
I have heard many times that using JavaScript events, such as onClick() , in HTML is a bad practice, because it's not good for semantics. I would like to know what the downsides are and how to fix the following code?
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What is the meaning of “$” sign in JavaScript
In the following JavaScript code there is a dollar ( $ ) sign. What does it mean?
7 Answers
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Check if all checkboxes are selected
...checkbox'].abc");
if(a.length == a.filter(":checked").length){
alert('all checked');
}
});
All this will do is verify that the total number of .abc checkboxes matches the total number of .abc:checked.
Code example on jsfiddle.
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Is there a HTML opposite to ?
Is there a tag in HTML that will only display its content if JavaScript is enabled? I know <noscript> works the opposite way around, displaying its HTML content when JavaScript is turned off. But I would like to only display a form on a site if JavaScript is available, telling them why they ...
Logging Clientside JavaScript Errors on Server [closed]
Im running a ASP.NET Site where I have problems to find some JavaScript Errors just with manual testing.
8 Answers
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Is the 'type' attribute necessary for tags?
...nguage. The scripting language is specified as a content type (e.g., "text/javascript"). Authors must supply a value for this attribute. There is no default value for this attribute.
For HTML 5, it is optional. If it is not specified, it defaults to text/javascript. Source
The type attribute...
are there dictionaries in javascript like python?
i need to make a dictionary in javascript like this
7 Answers
7
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What is JavaScript garbage collection?
What is JavaScript garbage collection? What's important for a web programmer to understand about JavaScript garbage collection, in order to write better code?
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Why doesn't JavaScript support multithreading?
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JavaScript does not support multi-threading because the JavaScript interpreter in the browser is a single thread (AFAIK). Even Google Chrome will not let a single web page’s JavaScript run concurrently because this would ca...