`String.prototype.trimStart`/`String.prototype.trimEnd` with a given string

Jacob Pratt jhprattdev at gmail.com
Sun Jun 23 07:13:49 UTC 2019

`String.prototype.padStart` and `String.prototype.padEnd` accept the string
to pad with as their final parameter. Is there any particular reason
`String.prototype.trimStart` and `String.prototype.trimEnd` don't do the
same? It would be nice to have a parallel, such that `'foo'.padEnd(10,
'bar').trimEnd('bar') === 'foo'`.

- https://github.com/tc39/proposal-string-pad-start-end
- https://github.com/tc39/proposal-string-left-right-trim

Jacob Pratt
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