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ldd/rev.js

Last active November 5, 2017 03:55
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reverse unicode strings
Raw
rev.js
var rSymbolMarks = /(<%= allExceptCombiningMarks %>)(<%= combiningMarks %>+)/g;
var rSurrogatePair = /([\uD800-\uDBFF])([\uDC00-\uDFFF])/g;
var reverse = s => s
.replace(rSymbolMarks, ($0, $1, $2) => `${reverse($2)}${$1}`)
.replace(rSurrogatePair, '$2$1')
.split('')
.reverse()
.join('')
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