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