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- console.log('foo' || false); // 'foo'
- console.log(null || 'bar'); // 'bar'
- console.log(false || 1); // 1
- console.log(false || null); // null
- function f(arg) {
- var a = arg || 0;
- // ...
- }
- console.log(true && []); // []
- console.log(null && 'foo'); // null
- console.log(0 && 'foo'); // 0
- console.log('foo' && 'bar'); // 'bar'
- console.log(!!'foo'); // true
- console.log(!!''); // false
- console.log(!!0); // false
- console.log(!!1); // true
- !!(a && b); // (1)
- (a && b); // (2)
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