In JavaScript, manipulating strings is a basic need. If you need to remove the first character from a string, there are several approaches you can take. In this tutorial, we will show you 4 approaches to remove the first character from string in JavaScript by w3school.
How to Remove the First Character from a String in JavaScript
Here are 4 approaches to removing the first character from a string in JavaScript by w3school:
- Approach 1: Using String
substr()Method - Approach 2: Using
substring()Method - Approach 3: Using String Slicing Method
- Approach 4: Using ES6 Arrow Functions and
slice()
Approach 1: Using String substr() Method
The substr() method extracts a specified number of characters from a string, starting at a specified index.
For example, if you want to remove the first character from a string, you can use substr(1):
// Given string
let givenString = "Hello, World!";
// Remove the first character
let stringWithoutFirstChar = givenString.substr(1);
console.log(stringWithoutFirstChar);
Approach 2: Using substring() Method
The substring() method helps us to remove characters from a string by specifying the starting index and end index.
To remove the first character, you can use substring(1) to get the substring starting from the second character to the end.
// Given string
let givenString = "Hello, World!";
// Remove the first character
let stringWithoutFirstChar = givenString.substring(1);
console.log(stringWithoutFirstChar);
Approach 3: Using String Slicing Method
The slice() method is similar but can accept only 1 argument. It removes characters from a string by specifying the starting index only.
For example, if you want to remove the first character from a string, you can use slice(1):
// Given string
let givenString = "Hello, World!";
// Remove the first character
let stringWithoutFirstChar = givenString.slice(1);
console.log(stringWithoutFirstChar);
Approach 4: Using ES6 Arrow Functions and slice()
Using the spread operator, you can convert the string into an array, remove the first element, and then join it back into a string by using slice():
Here is an example of remove first character from string using es6 arrow function with slic():
// Given string
let givenString = "Hello, World!";
// Remove the first character
let stringWithoutFirstChar = [...givenString].slice(1).join('');
console.log(stringWithoutFirstChar);
Conclusion
In this tutorial, you have learned 4 approaches to removing the first character from a string in JavaScript. Choose the approach that fits your preference and coding style.
