The trim() method removes whitespace from both ends of a string.
Example
const message = " JAVASCRIPT IS FUN ";
// remove leading and trailing whitespaces
const newMessage = message.trim();
console.log(newMessage);
// Output: JAVASCRIPT IS FUN
trim() Syntax
The syntax of trim() is:
str.trim()
Here, str is a string.
trim() Parameter
The trim() method does not take in any parameters.
trim() Return Value
- Returns a new string representing the
strstripped of whitespace from both ends.
Notes:
- Whitespace is all the whitespace characters (space, tab, no-break space, etc.) and all the line terminator characters (LF, CR, etc.).
- The
trim()method does not change the original string.
Example: Using trim()
let str = " foo ";
console.log(str.trim()); // 'foo'
// trim() removes whitespace only from the edges
let str1 = " A B C D ";
console.log(str1.trim()); // 'A B C D'
Output
foo A B C D