Remove characters that do not appear in the whitelist. The characters are used in a RegExp and so you will need to escape some chars, e.g. whitelist(input, '\\[\\]').
whitelist(input, '\\[\\]')
The target
The chars
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Remove characters that do not appear in the whitelist. The characters are used in a RegExp and so you will need to escape some chars, e.g.
whitelist(input, '\\[\\]').