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JavaScript - for...of statement
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In this article, we would like to show you how to use for...of statement in JavaScript.
The for...of statement creates a loop iterating over iterable objects (such as strings, arrays, maps, sets, and user-defined iterables).
xxxxxxxxxx1
for (variable of iterable) {2
// statement3
}xxxxxxxxxx1
var iterable = 'ABC';2
3
for (const value of iterable) {4
console.log(value);5
}Output:
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A2
B3
Cxxxxxxxxxx1
let array = [1, 2, 3, 'text'];2
3
for (let entry of array) {4
console.log(entry);5
}Output:
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12
23
34
textxxxxxxxxxx1
const iterable = new Map([2
['A', 1],3
['B', 2],4
['C', 3],5
]);6
7
for (const value of iterable) {8
console.log(value);9
}Output:
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A,12
B,23
C,3