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![Eden Gomez](https://uploads.teamtreehouse.com/production/profile-photos/6325332/micro_5.jpg)
Eden Gomez
22,565 PointsCan somebody please give me a hint with what method should I use for this challenge?
var expect = require('chai').expect
describe('subtraction', function () { var subtraction = require('../WHEREVER') it('only works with numbers', function () { // YOUR CODE HERE expect(substraction(number1, number2).to.be.NaN); }) })
var expect = require('chai').expect
describe('subtraction', function () {
var subtraction = require('../WHEREVER')
it('only works with numbers', function () {
// YOUR CODE HERE
})
})
function subtraction (number1, number2) {
if (typeof number1 !== 'number' || typeof number2 !== 'number') {
throw Error('subtraction only works with numbers!')
}
return number1 - number2
}
Routine Poutine
26,050 PointsRoutine Poutine
26,050 Pointsexpect(badFn).to.throw(err);
https://www.chaijs.com/api/bdd/