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

• DasDas: what exactly are you asking?
• Seth: developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… console.log(fruits.length)
• Linto P D: @DasDas.I need to get the length of given array
• Viva: var l = fruits.length
• Viva: @LintoPD , sorry . You wanted the number of defined items from array , not the actual length . :)

Answer 1

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

Answer 2

var i =0; 
fruits.forEach(function(entry){
i=i+1; 
});
console.log(i);