Count length of each string in an array

Question

This is my JS code:

var arr = ["the", "quick", "brown", "fox"];
    
console.log(arr.length);

I want an output like this:

[3, 5, 5, 3]

Does this answer your question? Count instances of string in an array — Zaid Aly
– Zaid Aly, Commented Jan 23, 2021 at 19:01

mss · Accepted Answer · 2021-01-23 19:06:55Z

1

You can use map function of array to get the new resultant array according to the operation performed for each element in the array

var arr = ["the", "quick", "brown", "fox"];

console.log(arr);

const resultArray = arr.map((element) => {
   return element.length;
});

console.log(resultArray);

edited Jan 23, 2021 at 19:06

answered Jan 23, 2021 at 18:58

mss

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2 Comments

Chris Over a year ago

or shorter: arr.map(({length}) => length);

mss Over a year ago

@Chris yes, my first answer was shorter also like arr.map(element => element.length) but I edited it to make it more readable

Arsalan Haider · Accepted Answer · 2021-01-23 22:24:05Z

0

You can also do this by looping through the array and printing its length

var arr=["the", "quick", "brown", "fox"];

for (var i=0;i<arr.length;i++){
console.log(arr[i].length);
}

answered Jan 23, 2021 at 22:24

Arsalan Haider

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