32 lines
820 B
JavaScript
32 lines
820 B
JavaScript
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const crypto = require('crypto');
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const trim = function(str, chars, flags) {
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if(chars === undefined)
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chars = " \n\r\t\v\0";
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let start = 0,
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end = str.length;
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if(flags & 0x01)
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while(start < end && chars.indexOf(str[start]) >= 0)
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++start;
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if(flags & 0x02)
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while(end > start && chars.indexOf(str[end - 1]) >= 0)
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--end;
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return (start > 0 || end < str.length)
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? str.substring(start, end)
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: str;
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};
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exports.trimStart = (str, chars) => trim(str, chars, 0x01);
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exports.trimEnd = (str, chars) => trim(str, chars, 0x02);
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exports.trim = (str, chars) => trim(str, chars, 0x03);
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exports.shortHash = function(text) {
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const hash = crypto.createHash('sha256');
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hash.update(text);
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return hash.digest('hex').substring(0, 8);
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};
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