8 lines
269 B
JavaScript
8 lines
269 B
JavaScript
|
// http://jfbastien.github.io/papers/Math.signbit.html
|
||
|
|
var $export = require('./_export');
|
||
|
|
|
||
|
|
$export($export.S, 'Math', { signbit: function signbit(x) {
|
||
|
|
// eslint-disable-next-line no-self-compare
|
||
|
|
return (x = +x) != x ? x : x == 0 ? 1 / x == Infinity : x > 0;
|
||
|
|
} });
|