How to find the length of an array in node.js

Question

i have an array

var fruits = [];
fruits[5] ="apple";
fruits[85] ="pinapple";

How can i get the count of array as 2 in node.js

developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… console.log(fruits.length) — Seth
– Seth, Commented May 4, 2015 at 13:08
@LintoPD , sorry . You wanted the number of defined items from array , not the actual length . :) — Viva
– Viva, Commented May 4, 2015 at 13:32

user2314737 · Accepted Answer · 2015-05-04 13:16:19Z

3

While

fruits.length

will give you the highest index plus 1 (86)

you can use

fruits.filter(function(x){return x !== 'undefined'}).length

to get the number of non-undefined elements in the arrya

answered May 4, 2015 at 13:16

user2314737

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Comments

Viva · Accepted Answer · 2015-05-04 13:22:37Z

3

var i =0;    

fruits.forEach(function(entry){

i=i+1; 
});

console.log(i);

answered May 4, 2015 at 13:22

Viva

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