forked from lix-project/lix-website
16 lines
461 B
JavaScript
16 lines
461 B
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var floor = require('./floor');
|
||
|
|
|
||
|
|
var $TypeError = require('es-errors/type');
|
||
|
|
|
||
|
|
// https://262.ecma-international.org/14.0/#eqn-truncate
|
||
|
|
|
||
|
|
module.exports = function truncate(x) {
|
||
|
|
if (typeof x !== 'number' && typeof x !== 'bigint') {
|
||
|
|
throw new $TypeError('argument must be a Number or a BigInt');
|
||
|
|
}
|
||
|
|
var result = x < 0 ? -floor(-x) : floor(x);
|
||
|
|
return result === 0 ? 0 : result; // in the spec, these are math values, so we filter out -0 here
|
||
|
|
};
|