Created
October 19, 2013 20:56
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| [1, 2, 3, 4, 5, 6, 7].indexOf(5) | |
| // 4 | |
| [1, 2, 3, 4, 5, 6, 7].indexOf(1) | |
| // 0 | |
| [1, 2, 3, 4, 5, 6, 7].indexOf("a") | |
| // -1 | |
| [1, 2, 3, 4, 5, 6, 7].indexOf(1.2) | |
| // -1 | |
| if([1, 2, 3, 4, 5, 6, 7].indexOf("a") === -1) | |
| console.log('O valor digitado está errado....'); | |
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