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18 lines
313 B
18 lines
313 B
12 years ago
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/*
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* Empty alternatives match and capture empty groups.
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*/
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var t;
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/*===
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string string undefined
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===*/
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/* The first alternative will match and capture the empty string.
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* The second alternative is not tried and capture is undefined.
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*/
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t = /()|()/.exec('');
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print(typeof t[0], typeof t[1], typeof t[2]);
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