15 lines
458 B
JavaScript
15 lines
458 B
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var $TypeError = require('es-errors/type');
|
||
|
|
|
||
|
|
var NumberAdd = require('./add');
|
||
|
|
var NumberUnaryMinus = require('./unaryMinus');
|
||
|
|
|
||
|
|
// https://262.ecma-international.org/12.0/#sec-numeric-types-number-subtract
|
||
|
|
|
||
|
|
module.exports = function NumberSubtract(x, y) {
|
||
|
|
if (typeof x !== 'number' || typeof y !== 'number') {
|
||
|
|
throw new $TypeError('Assertion failed: `x` and `y` arguments must be Numbers');
|
||
|
|
}
|
||
|
|
return NumberAdd(x, NumberUnaryMinus(y));
|
||
|
|
};
|