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brianloveswords/stateful-regexp.js Secret

Created February 6, 2020 16:41
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stateful-regexp.js
let re = /a/g
re.test('ab') // true
re.test('ab') // this will fail! re.lastIndex === 1, so it starts searching at 'b'
re.test('ab') // this will pass! since it failed, re.lastIndex is reset to 0
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