Please enable Javascript to correctly display the contents on Dot Net Tricks!
 
Ready to master latest .NET, JavaScript framework and Mobile development skills?
Join our training programs and take your career to the next level!

How to find a string within a jQuery or javascript string

Posted By : Shailendra Chauhan, 13 Apr 2013
Total Views : 5,277   
 
Keywords : jquery string contains function,find a substring in a string in javascript or jquery,finding sub string in jquery code form dynamic string

Sometimes, you required to find a the existence of a small string with in a string. This article will demonstarte, how could you do by using plain JavaScript.

First Method

//returns -1 if doesn't contains
if (str.indexOf("Hello") >= 0) 
{
 //string contains Hello
}
//OR
//For your are not sure about the case of the string
//returns -1 if doesn't contains
if (str.toLowerCase().indexOf("hello") >= 0)
{
 //string contains hello
}
This indexOf() method will return the position of the match, or -1 if it isn’t found.

Second Method

//returns false if doesn't contains
if (/hello/i.test(str))
{
 //string contain Hello
}
What do you think?

I hope you will enjoy the tips while playing with JavaScript. I would like to have feedback from my blog readers. Your valuable feedback, question, or comments about this article are always welcome.

 
Recommended Articles!
 
About the Author
Hey! I'm Shailendra Chauhan author, developer with more than 5 years of hand over Microsoft .NET technologies. I am a .NET Consultant, founder & chief editor of www.dotnet-tricks.com and www.dotnetinterviewtricks.com. I am author of books ASP.NET MVC Interview Questions and Answers & LINQ Interview Questions and Answers.
I love to work with web applications and mobile apps using Microsoft technology including ASP.NET, MVC, C#, SQL Server, WCF, Web API, Entity Framework,Cloud Computing, Windows Azure, jQuery, jQuery Mobile, Knockout.js, Angular.js and many more web technologies. More...
 
Free .NET Interview Books
 
Browse By Category
Learn In Hindi
 
 
Like us on Facebook