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0 pointsalexlur6y ago0 comments

String#padStart already exists: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe...

0 comments

But we still have trimLeft() and trimRight() and in true JS tradition we need some more redundancy for symmetry's sake.

As in the MDN article:

    All major engines have also implemented corresponding trimLeft and trimRight functions - without any standard specification.

So ES2019 implements trimStart() and trimEnd(), which are symmetrical to padStart() and padEnd(), but trimLeft() and trimRight() aliases are maintained as not to break working code.

ZenPsycho6y ago

That makes sense, "left" trimming rtl text could be confusing.

soulofmischief6y ago

You're right, I was just being tongue-in-cheek.

j / k navigate · click thread line to collapse

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soulofmischief6y ago

But we still have trimLeft() and trimRight() and in true JS tradition we need some more redundancy for symmetry's sake.

STRML6y ago

As in the MDN article:

    All major engines have also implemented corresponding trimLeft and trimRight functions - without any standard specification.

So ES2019 implements trimStart() and trimEnd(), which are symmetrical to padStart() and padEnd(), but trimLeft() and trimRight() aliases are maintained as not to break working code.

ZenPsycho6y ago

That makes sense, "left" trimming rtl text could be confusing.

soulofmischief6y ago

You're right, I was just being tongue-in-cheek.

j / k navigate · click thread line to collapse