15 lines
417 B
JavaScript
15 lines
417 B
JavaScript
const expect = require('expect');
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const {bind} = require('./_30s.js');
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test('bind is a Function', () => {
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expect(bind).toBeInstanceOf(Function);
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});
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function greet(greeting, punctuation) {
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return greeting + ' ' + this.user + punctuation;
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}
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const freddy = { user: 'fred' };
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const freddyBound = bind(greet, freddy);
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test('Binds to an object context', () => {
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expect(freddyBound('hi', '!')).toBe('hi fred!');
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});
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