javasript array indexof

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Roberto
20 May 2016
1var array = [2, 9, 9];
2array.indexOf(2);     // 0
3array.indexOf(7);     // -1
4array.indexOf(9, 2);  // 2
5array.indexOf(2, -1); // -1
6array.indexOf(2, -3); // 0
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Facundo
14 May 2016
1let days = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'];
2console.log(days.indexOf('Sunday'));
3// --> -1, mert nem található meg
4
5let days = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'];
6console.log(days.indexOf('Monday'));
7// --> 0
source
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