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
Krunal Lathiya is a seasoned Computer Science expert with over eight years in the tech industry. He boasts deep knowledge in Data Science and Machine Learning. Versed in Python, JavaScript, PHP, R, and Golang. Skilled in frameworks like Angular and React and platforms such as Node.js. His expertise spans both front-end and back-end development. His proficiency in the Python language stands as a testament to his versatility and commitment to the craft.