23 lines
449 B
JavaScript
23 lines
449 B
JavaScript
/*
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有効な比較演算子の文字列か
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[比較演算子 - JavaScript | MDN](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Operators/Comparison_Operators)
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*/
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// 有効な比較演算子のset
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const set_co = new Set([
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'<',
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'>',
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'<=',
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'>=',
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'==',
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'!=',
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'===',
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'!=='
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]);
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function isComparisonOperator(arg){
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return typeof arg==='string' && set_co.has(arg);
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}
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export default isComparisonOperator;
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