How to push and array into another array

Question

I'm trying to create a for loop that will loop through both arrays and then push the elements that array1 has but not array 2. So far this is what I have

var array1 = [{name: "Whitney"}, {name: "Cher"}, {name: "Tina"},{name: "Celine"}, {name: "Madonna"}, {name: "Janet"}];
var array2 = [{name: "Tina"}, {name: "Madonna"}];

function createNewArray() {
for (var i = 0; i < array1.length; i++) {
for (var j = 0; j < array2.length; j++) {
if (array1[i] == array2[j]) {

}

}

}

}

var array3 = createNewArray();
console.log(array3);

Answer 1

arr3 = arr1.filter((a)=>!arr2.includes(a));

Answer 2

You can do something like this instead of doing much long.
https://code.sololearn.com/WawEOohlcFay/?ref=app

Answer 3

Here you go:

var array1 = [{name: "Whitney"}, {name: "Cher"}, {name: "Tina"},{name: "Celine"}, {name: "Madonna"}, {name: "Janet"}];
var array2 = [{name: "Tina"}, {name: "Madonna"}];

function createNewArray() {
var arr = [];
for (var i = 0; i < array1.length; i++) {
var j;
for (var j = 0; j < array2.length; j++) {
if (array1[i].name === array2[j].name) break;
}
if(j===array2.length) arr.push(array1[i]);
}
return arr;
}

array3 = createNewArray();
console.log("array3 = " + JSON.stringify(array3));

https://code.sololearn.com/Wvrx32Ax0AkD/#js

Answer 4

You can't compare two objects, in this case, dictionaries, directly.
Instead of comparing array1[i] and array2[i], compare array1[i].name and array2[i].name

Answer 5

One more alternative.
https://code.sololearn.com/W7a5TI3BE5RT/#js

Answer 6

Jay Matthews

a=[1,2,3,4]
b=[4,5,6,7]

console.log(a.concat(b))
// 1,2,3,4,4,5,6,7
But that's not the goal.

Answer 7

solution
array1.splice(i, 1)
}
}

}
return array1
}

thank you to everybody for showing me many different ways to solve this algorithm.

Answer 8

কি ভাবে আমি আমার পেইচ-বুক ওয়াড়সটপ্স গেম ফলোয়ারদের হাত থেকে বাঁচবো