jiapengyu
13 lines
285 B
JavaScript
13 lines
285 B
JavaScript
var isUndef = require('./isUndef');
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exports = function(n, lower, upper) {
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if (isUndef(upper)) {
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upper = lower;
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lower = undefined;
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}
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if (!isUndef(lower) && n < lower) return lower;
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if (n > upper) return upper;
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return n;
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};
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module.exports = exports;
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