JavaScript - Remove all Occurrences of a Character in JS String

These are the following ways to remove all occurrence of a character from a given string:

1. Using Regular Expression

Using a regular expression, we create a pattern to match all occurrences of a specific character in a string and replace them with an empty string, effectively removing that character.

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2. Using the split() and join() Methods

In this approach, Using the split() method, we break a string into an array at each occurrence of a specified character. Then, with the join method, we reconstruct the array into a new string, effectively removing that character.

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3. Using for..in loop

The for...in loop iterates through characters of the input string. If a character doesn't match the specified one, it's appended to a new string, effectively removing the specified character.

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4. Using String.prototype.replace() Method

Using String.prototype.replace() with a function involves passing a regular expression to match the character to be removed globally. Inside the replace function, return an empty string to remove each occurrence of the character.

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5. Using Array.prototype.filter() Method

The input string is converted into an array of characters using the split('') method. Then, the filter() method is used to create a new array excluding the specified character. Finally, the join('') method is used to reconstruct the array back into a string.