Here are four ways to remove a character from a string in JavaScript:
- Using string.replace()
- Using string.replace() with the regex
- Using string.slice()
- Using string.substr()
Method 1: Using string.replace()
The string.replace() method replaces a specific character with an empty character.
Syntax
string.replace('character_to_replace', '')
Visual representation
Example
string = "AppDividend";
str_chr_removed = string.replace('A', '');
console.log('Original String: ', string);
console.log('After character removed: ', str_chr_removed);
Output
Original String: AppDividend
After character removed: ppDividend
Method 2: Using a replace() method with a regular expression
This combination(replace() method with a regular expression) removes all occurrences of the particular character.
Syntax
string.replace( /regular_expression/g, "")
Visual representation
Example
str = "AppDividend";
str_chr_removed = str.replace(/A/g, '');
console.log('Original String: ', str);
console.log('After character removed: ', str_chr_removed);
Output
Original String: AppDividend
After character removed: ppDividend
Method 3: Using slice()
The string.slice() function is used to extract the parts of a string between the given parameters. It takes the starting and ending indexes of the string and returns the string in between these indices.
Syntax
string.slice(start_index, end_index)
Visual representation of removing the first character
Visual representation of removing the last character
Example
string = 'AppDividend';
console.log('Original String: ', string);
str_chr_removed = string.slice(1);
console.log('Removing the first character', str_chr_removed);
remove_last_char = string.slice(0, string.length - 1);
console.log('Removing the last character: ', remove_last_char);
Output
Original String: AppDividend
Removing the first character ppDividend
Removing the last character: AppDividen
Method 4: Using substr()
The string.substring() function is used to extract the part of the string between the start and end indexes or to the end of a string. It can remove a character from the specific index in the string.
Syntax
string.split(separator, limit)
Visual representation
Example
string = 'AppDividend';
console.log('Original String:', string);
str_chr_removed = string.substr(1, string.length);
console.log('After removing the first character:', str_chr_removed);
Output
Original String: AppDividend
After removing the first character: ppDividend