To check whether string contains subString javascript; Through this tutorial, i am going show you how to check whether a string contains substring characters in JavaScript with the help of include() method.
JavaScript String Contains SubString
JavaScript includes() method is used to check whether a string contains the given characters(substring).
Syntax of JavaScript Include() Method
The basic syntax of the include() method; as shown below:
string.includes(searchvalue, start);
Parameters of JavaScript Include() Method
- Search Value: This is the string that will contain the search.
- Start: This is where the search will be processed
If the string has a substring, JavaScript provides several methods to perform the check. Learn the easy way to find a given substring or character in a string.
Example 1 – To check whether a string contains a substring or character in JavaScript using the include() method
See the following example to check string contains substring in javaScript using include() method; as shown below:
var string = "This is a laratutorials.com and this tutorial contains javascript include() method examples."
str.includes("contains");
//The output of this
true
Output:
Output: true
Example 2 – To check whether a string contains a substring or character in JavaScript using the include() method
See the second following example to check string contains substring in javaScript using include() method; as shown below:
The example-2 is linked to StackOverflow.com
Example 3 – To check whether a string contains a substring or character in JavaScript using the include() method
See the third following example to check string contains substring in javaScript using include() method; as shown below:
var string = "This tutorial contains javascript include() method examples."
str.includes("contains", 5);
//The output of this
true
Output:
Output: true
Conclusion
In this JavaScript tutorial – you have learned the easy way to find/check a whether given substring or character in a string.
