[javascript] Check if a string has a certain piece of text

Possible Duplicates:
Check if text is in a string
JavaScript: string contains

I'm trying to check if a string I import into my application has a certain piece of text. I know how to do this with jQuery, but how do I do it with straight up JavaScript?

This question is related to javascript string

The answer is

Here you go: ES5

var test = 'Hello World';
if( test.indexOf('World') >= 0){
  // Found world
}

With ES6 best way would be to use includes function to test if the string contains the looking work.

const test = 'Hello World';
if (test.includes('World')) { 
  // Found world
}

Source: Stackoverflow.com

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[javascript] Check if a string has a certain piece of text

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