Skip to main content

What is the use of $ symbol in JQuery

At present, a number of potential candidates are inclined toward the segment of JQuery.  This is another reason for which you may prefer JQuery interview questions. The symbol $ has a lot to do with the JavaScript as in language. Once you start working over the JQuery, then you will eventually learn about the usage of $ sign. Symbol $ deals with defining the JQuery in particular. With the surveillance of $, the JQuery variable distinguishes them from the objects standardized JavaScript.In this article, we will learn the use of a $ symbol in JQuery. The symbol $ is utilized by JavaScript for the variable name.


In brief, you can say that JQuery is a JavaScript library that focuses on less writing and more doing. It is not much involved in programming but has the tools that simplify the writing of standard Javascript. Later it is the association of symbol “$.” Also, there are many crucial JQuery interview questions which will help you during the interview.
JQuery syntax
JQuery uses CSS syntax for the element selection. The character selection in it is integrated and in reference to the CSS notation. In order to perform the HTML element selection and some certain action on the elements, JQuery syntax is used. The basic syntax followed by it is $(selector).action (). This symbol is in coordination as -
  • In order to define or access the query
  • A selector to find the HTML elements
  • JQuery action () is performed for the elements
This design is basically presumed to access the JQuery. The symbol $ is a function for JQuery so that the code can be written considering the same result. $ simplifies the programming of JavaScript and makes it easy to learn. There are some interesting facts associated with JQuery and $. Let's take a look through it -

  • By default,$ symbol is used by JQuery as a shortcut for it. Which means that $("#id") or JQuery ("id') is almost the same
  • By default, $ is the alias for JQuery. JQuery can also be used in place of $ by default.
  • JQuery is actually a simplified code for js, and we can count it as a simplification code.
  • In JQuery, $ is the symbol that is used at the starting of every sentence.
  • The short form of JQuery is $.
Uses of $ in selectors
With the help of selectors, the user gets to know the elements are executable in JQuery. There are certain conditions of JQuery specifications that are essential to know. The $ symbol enables the access of a selector with the help of JQuery followed by parentheses (). Have a look through the syntax "$("selector").
The double quote string is here in reference to the JQuery style. In some cases, single quoted strings are also used. Below mentioned are few selectors-
  • $("*") for wildcard
  • $(this) current status
  • $("p") for the tag
  • $(". example") represents class
  • $ ("#example") for selection of single instances
The use of $ in selectors is one of the most asked JQuery interview questions, so be clear with it.
Final thoughts
If you have followed for this article, you will have a better understanding of the efficiencies of symbol $ in JQuery. You will also be able to write your own code in your form with ease. Other than this, you can also consider JQuery interview questions for better command in this field.
Labels:

Comments

Post a Comment

Popular posts from this blog

Why Is WordPress So Popular?

Introduction WordPress is an online, open-source website development and creation tool which is written in PHP language.  In other words, WordPress is the most powerful blogging and website Content Management System (CMS). WordPress features include a plug-in architecture and template system. Nowadays, WordPress is used by more than 19% of the top million websites.  It is of many PHP/ MySQL content management systems that allow content editors to use a web interface to maintain their websites instead of editing and uploading HTML files to a server.  The latest stable release of WordPress is Version 3.9.1. In this blog, a comprehensive summary of the WordPress popularity is provided to the users. Moreover, users can also create WordPress Interview Questions website on the web with the use of the WordPress platform. WordPress is so popular in today’s scenario due to the following features Simplicity and Flexibility With the help of WordPress, users can create any variety o
Post a Comment
Read more

How to Create a Stored Procedure in MySQL

In this article, we will describe how to create a stored procedure in MySQL for your acknowledgment, which may come superbly handy with your advance preparation of MySQL interview questions . MySQL excellently supports stored procedures which are able to execute a set of codes by enforcing relevant business logic. So, What’s a Stored Procedure? It can be defined as a  sub program present in a regular computing language, stored in a database. It has a name, SQL statements, SQL command logic,and a parameter list. It allows developers to create SQL queries which can be stored and executed on the server. These can also be cached and reused. The prime purpose of MySQL stored procedures is to hide direct SQL queries from the code, thus improving the performance  of database operations such as update, delete, and  select data. Let’s Create a Simple MySQL Stored Procedure Before we start creating a MySQL stored procedure;we would like to repeat that practicing these steps could be
Post a Comment
Read more