184c6a9a6b
The spec says to throw a TypeError when a legacy static property like RegExp.$1 is accessed before any regex has matched, but all major browsers return an empty string instead. Let's match that behavior for compatibility.
16 lines
566 B
JavaScript
16 lines
566 B
JavaScript
test("legacy static properties return empty string before any match", () => {
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expect(RegExp.$1).toBe("");
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expect(RegExp.$2).toBe("");
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expect(RegExp.$3).toBe("");
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expect(RegExp.$4).toBe("");
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expect(RegExp.$5).toBe("");
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expect(RegExp.$6).toBe("");
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expect(RegExp.$7).toBe("");
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expect(RegExp.$8).toBe("");
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expect(RegExp.$9).toBe("");
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expect(RegExp.input).toBe("");
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expect(RegExp.lastMatch).toBe("");
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expect(RegExp.lastParen).toBe("");
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expect(RegExp.leftContext).toBe("");
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expect(RegExp.rightContext).toBe("");
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});
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