DefinitelyTyped/classnames/classnames-tests.ts
Ville Saarinen 103788b39d Add support for passing in undefined or null
This is needed if strictNullChecks are enabled
2016-08-24 13:08:40 +03:00

25 lines
963 B
TypeScript

import classNames = require('classnames')
classNames('foo', 'bar'); // => 'foo bar'
classNames('foo', 'bar'); // => 'foo bar'
classNames('foo', { bar: true }); // => 'foo bar'
classNames({ foo: true }, { bar: true }); // => 'foo bar'
classNames({ foo: true, bar: true }); // => 'foo bar'
classNames(10, 11); // => '10 11';
// lots of arguments of various types
classNames('foo', { bar: true, duck: false }, 'baz', { quux: true }); // => 'foo bar baz quux'
classNames(['foo', 'bar', 'baz']); // => 'foo bar baz'
classNames([1, 2, 3]); // => '1 2 3'
classNames([{ foo: true, bar: false }, { baz: true }]); // => 'foo baz'
classNames(["foo", ["bar", {baz: true}]]); // => 'foo bar baz'
// falsey values are just ignored
classNames(null, 'bar', undefined, 0, 1, { baz: null }, ''); // => 'bar 1'
// Supporting booleans is tricky since we should only support passing in false, which is ignored
//classNames(false, 'bar', 0, 1, { baz: null }, ''); // => 'bar 1'