Created
December 14, 2018 18:38
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Создайте функцию find(arr, value), которая ищет в массиве arr значение value и возвращает его номер, если найдено, или -1, если не найдено. | |
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arr = ["test", 2, 1.5, false]; | |
function find(arr, val) { | |
/* 1) Первый способ */ | |
if(arr.indexOf) return arr.indexOf(val); | |
/*2) Второй способ*/ | |
for(var i = 0; i < arr.length; i++) { | |
if(arr[i] === val) { | |
return i; | |
} | |
} | |
return -1; | |
} | |
console.log(find(arr, false)); // 0 |
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