commit by magit in emacs@2022-09-12 12:36:30
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@ -5,3 +5,5 @@ typeof '' === 'string';
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// 判断字符串是否包含子串,区分大小写
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'Blue Whale'.includes('blue'); // returns false
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'blue ss'.indexOf('blue');
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// str.substring(indexStart[, indexEnd])
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