| To trim whitespace from the edges of a string, use String.prototype.trim:
"
some whitespaced string ".trim(); // "some whitespaced string"
Many JavaScript engines, but not Internet Explorer, have implemented non-standard trimLeft and trimRight methods. There is a proposal, currently at Stage 1 of the process, for standardised trimStart and trimEnd methods, aliased to trimLeft and trimRight for compatibility.
// Stage 1 proposal
"
"
this is me
this is me
".trimStart(); // "this is me "
".trimEnd(); // "
this is me"
// Non-standard methods, but currently implemented by most engines
"
"
this is me
this is me
".trimLeft(); // "this is me
"
".trimRight(); // "
this is me" |