How to Split and Join Strings in JavaScript: Removing a Specific Character

Learn how to remove a specific character, such as "2", from a string like "SHELF-2-1-1-2-1" using JavaScript's split and join methods.
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When working with strings in JavaScript, you may encounter situations where you need to remove certain characters and join the remaining parts together. This can be achieved using the split and join methods effectively. Let's take a practical example to illustrate this process.

Consider the string SHELF-2-1-1-2-1. If you want to remove all occurrences of the character "2" and then join the remaining parts, you can use the split and join methods in JavaScript.

Here's a step-by-step approach:

Step 1: Split the String

The split method allows you to divide a string into an array of substrings based on a specific delimiter. In our case, we will use "2" as the delimiter to split the string.

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After this, splitArray will look like:

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Step 2: Join the Array

The join method then allows you to concatenate the elements of an array into a single string, using a specified separator. Since we want to join the parts without any extra characters, we'll use an empty string "" as the separator.

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After joining, resultString will be:

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Complete Code Example

Here is the complete code with explanations:

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Summary

By using the combination of split and join methods, we can easily remove specific characters from a string and concatenate the remaining parts. This method is not only effective but also simple to implement.

Whether you're working with more complex strings or just need a straightforward solution, mastering the use of split and join can significantly enhance your string manipulation skills in JavaScript.