rashmi agar
7 posts
Mar 07, 2025
8:57 PM
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The array.entries method is a useful tool for iterating over an array while accessing both the index and the value of each element. It returns a new Array Iterator object containing key-value pairs.
Syntax:
javascript
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array.entries()
Example Usage:
javascript
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let colors = ["red", "green", "blue"];
let iterator = colors.entries();
for (let [index, value] of iterator) {
console.log(index, value);
}
// Output:
// 0 "red"
// 1 "green"
// 2 "blue"
Why Use entries()?
Ideal for situations where you need both the index and the value.
Works well with destructuring in loops.
Useful for iterating over sparse arrays.
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