CODEWITHSUNDEEP
javascriptloops
user11321987
user11321987

Reputation:

JavaScript nested inner for loop not working

I want to store the common strings from bobsFollower array and tinasFollower array in mutualFollowers array. 

const bobsFollowers = ['vinit','vidyesh','bipin','shobhana'];
const tinasFollowers = ['vinit','vidyesh','manish'];
const mutualFollowers = [];
for (let i = 0; i < bobsFollowers.length; i++){
  for (let j = 0; j < tinasFollowers.lenght; j++){
    if (bobsFollowers[i] === tinasFollowers[j]){
      mutualFollowers.push(tinasFollowers[j]);
    }     
  }
};
console.log(mutualFollowers);

inner for loop in not getting executed

Upvotes: -1

Views: 74

Answers (4)

A. Atal
A. Atal

Reputation: 115

Seems like you are misspelling length as lenght on the 5th line. and also there is an extra semicolon on the 10th line, which is not causing the error. Here is the solution.

const bobsFollowers = ['vinit','vidyesh','bipin','shobhana'];
const tinasFollowers = ['vinit','vidyesh','manish'];
const mutualFollowers  = [];
for(let i = 0; i < bobsFollowers.length; i++){
    for(let j = 0; j < tinasFollowers.length; j++){
        if(bobsFollowers[i] === tinasFollowers[j]){
            mutualFollowers.push(bobsFollowers[i]);
        }
    }
}
console.log(mutualFollowers );

Upvotes: 0

kalle
kalle

Reputation: 139

Much easier with filter 

const bobsFollowers = ['vinit','vidyesh','bipin','shobhana'];

const tinasFollowers = ['vinit','vidyesh','manish'];


const mutualFollowers  = bobsFollowers.filter(element => tinasFollowers.includes(element));

console.log(mutualFollowers);

Upvotes: 0

pragmethik
pragmethik

Reputation: 182

you made a mistake in your code : in the second "for" you wrote "tinasFollowers.lenght" instead of "tinasFollowers.length" ;)
Here is the correct code : 

const bobsFollowers = ['vinit','vidyesh','bipin','shobhana'];
const tinasFollowers = ['vinit','vidyesh','manish'];
const mutualFollowers = [];
for (let i = 0; i < bobsFollowers.length; i++){
    for (let j = 0; j < tinasFollowers.length; j++){
        if (bobsFollowers[i] === tinasFollowers[j]){
            mutualFollowers.push(tinasFollowers[j]);
        }
    }
};
console.log(mutualFollowers);

Upvotes: 0

Diogenis Siganos
Diogenis Siganos

Reputation: 797

You had a typo in the inner loop: you mistyped length as lenght!

const bobsFollowers = ['vinit','vidyesh','bipin','shobhana'];
const tinasFollowers = ['vinit','vidyesh','manish'];
const mutualFollowers = [];
for (let i = 0; i < bobsFollowers.length; i++){
  for (let j = 0; j < tinasFollowers.length; j++){
    if (bobsFollowers[i] === tinasFollowers[j]){
      mutualFollowers.push(tinasFollowers[j]);
    }     
  }
};
console.log(mutualFollowers);

Upvotes: 1

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