Zipping Arrays in JavaScript
Zipping two arrays in JavaScript involves pairing elements from both arrays into a new array of tuples. This can be achieved using the map method, which creates a new array populated with the results of a provided callback function executed for each element of the original array.
Implementation:
To zip the arrays a and b as per the example provided, you can use the following code:
var a = [1, 2, 3]; var b = ['a', 'b', 'c']; var c = a.map(function(e, i) { return [e, b[i]]; }); console.log(c);
Explanation:
The map method iterates over each element in a and calls the provided callback function with the current element and its index. Inside the callback function, we create a tuple by pairing the current element of a with the element at the same index in b. The result of this operation is then stored in a new array c.
Output:
The output of the provided code will be:
[[1, 'a'], [2, 'b'], [3, 'c']]
which matches the desired result.
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