The example provided shows how the method is used and what will happen depending on whether or not the substring is present. ![]() The `includes()` method can be used to check if a string contains a certain substring in JavaScript. Otherwise, it will execute the second block of code and log ‘The substring is not present.’ Conclusion is the delimiter for the start of the word. For instance, we can write: const str1 'abc' const str2 'abcd' console.log (str1.match (/abc/)) console.log (str2.match (/abc/)) to call match with a regex that matches the exact word. The `if` statement will then execute the first block of code, logging ‘The substring is present.’ to the console. We can use the JavaScript string instance’s match method to search for a string that matches the given pattern.JavaScript StringsThe includes () Methodincludes () returns true if a string contains a specified string.In this example, `mainString.includes(substring)` will return `true` if the `mainString` contains the specified `substring`. ![]() Here’s an example:Ĭonst mainString = 'Hello, welcome to the world of programming.' Ĭonsole.log('The substring is present.') Ĭonsole.log('The substring is not present.') You can use the `includes()` method to check if a string contains a certain substring in JavaScript. An example of the includes method: //Our string. Lu ý rng phng thc có phân bit ch hoa ch thng. ![]() Phng thc s tr v True nu chui cha chui con mà ngi dùng cung cp, ngc li s tr v False. In this blog post, we will look at how to use the `includes()` method with an example. You can also use the () method to determine if one string exists inside another. Hàm string.includes () trong Javascript Phng thc string.includes () s kim tra xem mt chui con c ngi dúng cung cp có nm trong chui hay không. Note: The includes () method is case sensitive i.e, it will treat the Uppercase characters and Lowercase characters differently. This method returns true if the string contains the characters, otherwise, it returns false. JavaScript provides the `includes()` method to make this process easier and more efficient. In JavaScript, the includes () method determines whether a string contains the given characters within it or not. Checking if a string contains a certain substring is an important task in programming.
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