How to Remove Suffix Characters in an Array with JavaScript

Learn how to efficiently remove specific suffix characters from an array of strings in JavaScript using simple functions and regular expressions.
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How to Remove Suffix Characters in an Array with JavaScript

Working with text data often involves manipulating strings in various ways. One common task is removing specific suffix characters from words in an array. Whether you’re cleaning up data or processing inputs, knowing how to effectively achieve this can save time and improve the quality of your applications.

The Problem

Imagine you have an array of words, and you want to remove specific suffixes. For example:

[[See Video to Reveal this Text or Code Snippet]]

In this scenario, you want to remove 's' from "gives" but keep the 'S' in "She". You might also wish to remove 'ed' from "called". How can you efficiently implement this in JavaScript?

The Solution

We will discuss two effective approaches to address the problem: using a function with array methods and leveraging regular expressions.

Method 1: Using a Function with Array Methods

Step-by-step Explanation

Define the Arrays: Start by defining your array of words and the array of suffixes.

Create the Function: The function will check if the word ends with any of the suffixes.

Slice the Word: If a suffix is found, slice the word to remove the suffix.

Here's the code implementation:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code:

find() Method: This checks each word against the suffixes to see if it ends with any of them.

slice() Method: When a match is found, it removes the suffix by slicing the word from the end based on the length of the found suffix.

Method 2: Using Regular Expressions

An alternative approach is to use JavaScript's regular expressions, which can efficiently match suffixes to be removed from the strings.

Step-by-step Explanation

Define the Regular Expression: Combine the suffixes into a single regular expression that matches any of them at the end of a string.

Here's how the implementation looks:

[[See Video to Reveal this Text or Code Snippet]]

Key Points:

join('|'): This creates a pattern that matches any of the suffixes.

$: This indicates that the match should occur at the end of the string.

The replace() function removes any matched suffix from each word.

Conclusion

Both methods allow you to effectively remove specific suffix characters from words in an array. Whether you choose to implement with array methods or regular expressions will depend on your preference and the complexity of your needs.

In practice, using these techniques will help you clean and prepare your string data for further processing within your applications. Happy coding!