15 lines
242 B
JavaScript
15 lines
242 B
JavaScript
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// @noflow
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// Array#reduce
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[0,1].reduce((x,y,i) => y);
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["a", "b"].reduce(
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(regex, representation, index) => {
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return regex + (index ? '|' : '') + '(' + representation + ')';
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},
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'',
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);
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[""].reduce((acc,str) => acc * str.length);
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