String.prototype.trimEnd()
The trimEnd()
method removes whitespace from the end of a string and returns a new string, without modifying the original string. trimRight()
is an alias of this method.
Try it
Syntax
js
trimEnd()
trimRight()
Return value
A new string representing str
stripped of whitespace from its end (right side). Whitespace is defined as white space characters plus line terminators.
If the end of str
has no whitespace, a new string is still returned (essentially a copy of str
).
Aliasing
After trim()
was standardized, engines also implemented the non-standard method trimRight
. However, for consistency with padEnd()
, when the method got standardized, its name was chosen as trimEnd
. For web compatibility reasons, trimRight
remains as an alias to trimEnd
, and they refer to the exact same function object. In some engines this means:
js
String.prototype.trimRight.name === "trimEnd";
Examples
Using trimEnd()
The following example trims whitespace from the end of str
, but not from its start.
js
let str = " foo ";
console.log(str.length); // 8
str = str.trimEnd();
console.log(str.length); // 6
console.log(str); // ' foo'
Specifications
Specification |
---|
ECMAScript Language Specification # sec-string.prototype.trimend |
Browser compatibility
BCD tables only load in the browser