Regular Expressions in Java Script

 Regular Expressions in Java Script

Regular expressions are a powerful tool for matching patterns in text. In JavaScript, you can create a regular expression using the RegExp constructor or by using a regex literal enclosed in forward slashes.

Here's an example of a regular expression that matches a string containing the word "apple":

javascript

var regex = /apple/;

var str = "I like to eat apples.";

if (regex.test(str)) {

  console.log("The string contains the word 'apple'.");

} else {

  console.log("The string does not contain the word 'apple'.");

}