Operations with strings vary from splitting to the removal of whitespaces to checking if a string contains spaces. JavaScript provides built-in string methods and features that allow us to manipulate or work with strings. Strings are immutable, and so the way we work with them can be a little...
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How do you check if one string contains a substring in JavaScript?Craig Buckler
JavaScript offers many ways to check if a string contains a substring. Learn the canonical way, and also find out all the options you have, using plain JavaScriptChecking if a string contains a substring is one of the most common tasks in any programming language....
Go: strings.Contains() Ruby: string.include? You get the point. There are a million ways to do this, and it seems like each language implements it differently. Anyway, let's see a few of the ways in which you can check if a string contains a substring in JavaScript. Note: The first...
To check if a Javascript String Contains a substring or not, we can use 7 different Javascript methods as listed in below table.
This is a JavaScript tutorial on how to check if a string contains a substring or character. To accomplish this, we will use theString.prototype.indexOf()method. Take a look at the following example: //The string that you want to search. ...
If you don’t wish to use includes you can go with good old indexOf method. 'hello javascript'.indexOf('javascript') !== -1 // output: true indexOf will return starting index of the substring, if it is found. If the substring is missing from string, it’ll return -1. 0...
String.includes() Method The String.includes()provides the most simple and popular way to check if a string contains a substring in modern JavaScript. It was introduced in ES6 and works in all modern browsers except Internet Explorer. The String.includes() method returns true if the string con...
In this tutorial, you’ll learn how to check whether a string contains a particular substring or not in JavaScript.