JavaScript String includes() Method
In this article, we are going to learn how the includes() method works with String. ES6 introduced this method to determine whether the specified sub-string in exists in given String. It matches the String case-sensitively.
Syntax
str.includes(searchString,start)
Parameters
searchString – Required. String to search within str.
start – Optional. At which index the string search should be start. Default to 0 if not specified.
Return Type
Boolean. If the match fount then it return true else false.
Sample Code Snippet
The below example shows the how the includes() method works.
var str = "Hello Coder, welcome to the poopcode.";
str.includes("code"); //trueFor the String, “Hello Coder, welcome to the poopcode.” there is a sub-string “Code” and “code” in the below statement we specified the “Code” and index 12. From the position 12 we don’t found the exact match so it returns false.
var str = "Hello Coder, welcome to the poopcode.";
str.includes("Code", 12); //falseHappy Learning 🙂
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