21 lines
597 B
JavaScript
21 lines
597 B
JavaScript
var str = "abcdefgh";
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var n = 2;
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var m = 3;
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// * starting from n characters in and of m length;
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str.substr(n, m); // => "cde"
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// * starting from n characters in, up to the end of the string;
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str.substr(n); // => "cdefgh"
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str.substring(n); // => "cdefgh"
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// * whole string minus last character;
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str.substring(0, str.length - 1); // => "abcdefg"
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// * starting from a known character within the string and of m length;
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str.substr(str.indexOf('b'), m); // => "bcd"
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// * starting from a known substring within the string and of m length.
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str.substr(str.indexOf('bc'), m); // => "bcd"
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