unicode - Strip U+10000-U+10FFFF from javascript strings -


tried string.replace(/\u10000-\u10ffff/g, ''), sadly \u doesn't support 10000+

to specify code points beyond u+ffff, need utf-16 surrogate pairs:

string.replace(/[\ud800-\udbff][\udc00-\udfff]/g, '')

for future reference: 1 of current ecmascript proposals add /u flag support unicode supplementary characters, allow:

string.replace(/[\u{10000}-\u{10ffff}]/gu, '')

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