How to effectively use $ in JQuery

Question

I am relatively new to Javascript and Jquery. I've been looking through some code for a potential project and I see constant use of '$'. Through the context I can get an idea of what it means, but I don't have enough of a grasp to understand how to manipulate it.

For example, this line seems to take the csv file and returns a string variable called data with the contents of the csv file. But I don't understand how or why it does that.

$.get('browserData.csv', function(data)){

How do people familiar with Jquery effectively use the '$'?

`$` is just the name of the jQuery object. If you're asking "how do I learn jQuery" then I'm afraid that's too broad for a single Stack Overflow question. — David, Jun 26 '14 at 16:44
`$` is an alias for the `jQuery` library object (aka. namespace). `$.get` is equivalent to `jQuery.get` — blgt, Jun 26 '14 at 16:45

score 3 · Answer 1 · answered Jun 26 '14 at 16:45

$("JustaboutAnything");// As a selector
$.get("afile"); // Rendering Ajax
$(function();// Declaring Document Ready

This is question is not specific.

Like @BLGT said, $ is an alias for the jQuery library object (aka. namespace)

http://api.jquery.com/

score 2 · Answer 2 · edited May 23 '17 at 11:58

2

The dollar sign

The first $ is a shorthand for the jQuery() function, the jQuery object constructor.

In other words, it's a variable called $ that's been assigned a function called jQuery, as can been seen in the unminified version of the jQuery file: window.jQuery = window.$ = jQuery;

From here

TL;DR: It's shorter than writing "jQuery" all the time. You use it everytime you want access to jQuery specific functionality.

edited May 23 '17 at 11:58

Community

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answered Jun 26 '14 at 16:51

Marius P.

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So it's like a shortcut for all JQuery library functions only? – YazanLpizra Jun 26 '14 at 16:52
Short answer, yes. Though, there might be sometimes exceptions. – Marius P. Jun 26 '14 at 17:00

How to effectively use $ in JQuery

2 Answers2