regex to get part of word nodejs

To extract a part of a word in Node.js using regular expressions, you can use the match() method along with a regular expression pattern. Here's an example of how you can accomplish this:

const word = "nodejs";
const pattern = /node(\w+)/;

const result = word.match(pattern);
const extractedPart = result[1];

console.log(extractedPart);

Let's break down the code and explain each step:

  1. Initialize a variable word with the word you want to extract a part from. In this case, the word is "nodejs".

  2. Create a regular expression pattern to match the desired part of the word. The pattern /node(\w+)/ consists of the literal string "node" followed by (\w+). The \w+ part is a capturing group that matches one or more word characters (letters, digits, or underscores).

  3. Use the match() method on the word variable, passing in the pattern as an argument. This method returns an array of matches.

  4. Assign the result of the match() method to the result variable.

  5. Access the extracted part of the word by accessing the second element of the result array using the index [1]. The first element at index [0] is the entire matched string.

  6. Finally, print the extracted part using console.log().

In this case, the extracted part is "js", which is logged to the console.