47 lines
881 B
JavaScript
47 lines
881 B
JavaScript
|
import {describe, it, expect} from 'test_lib/test_lib';
|
||
|
|
|
||
|
|
var inc = x => x + 1;
|
||
|
|
|
||
|
|
var objLiteral = val => ({'key': val});
|
||
|
|
|
||
|
|
var max = (a, b) => {
|
||
|
|
if (a > b) {
|
||
|
|
return a;
|
||
|
|
} else {
|
||
|
|
return b;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
class LexicalThis {
|
||
|
|
constructor() {
|
||
|
|
this.zero = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
getZero() {
|
||
|
|
return (() => this.zero)();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
export function main() {
|
||
|
|
describe('arrow functions', function() {
|
||
|
|
it('should support implicit return', function() {
|
||
|
|
expect(inc(0)).toBe(1);
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should support object literal', function() {
|
||
|
|
var o = objLiteral('val');
|
||
|
|
expect(o['key']).toBe('val');
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should support complex body', function() {
|
||
|
|
expect(max(0, 1)).toBe(1);
|
||
|
|
expect(max(1, 0)).toBe(1);
|
||
|
|
});
|
||
|
|
|
||
|
|
it('should support lexical this', function() {
|
||
|
|
var lthis = new LexicalThis();
|
||
|
|
expect(lthis.getZero()).toBe(0);
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|