Creating an array of objects with for loop in JavaScript

Question

I want to create an array of objects with for loop using values in another array.

Code Snippet below generates 5 values, instead of 6 (as required)

function generateArray() {
 var names = ["Fariz", "Falisha", "Mami", "Defina", "Fiska", "Papi"];
 var newObj = [];
 for (i = 0; i < names.length - 1; i++) {
 newObj[i] = {
 name: names[(Math.floor(Math.random() * (names.length)))],
 age: Math.floor(Math.random() * 40),
 communication: Math.floor(Math.random() * 20),
 skill: Math.floor(Math.random() * 20),
 experience: Math.floor(Math.random() * 20)
 }
 }
 return newObj;
}
console.log(generateArray());

How do I generate as many values as present in names array ?

• CertainPerformance: Seems to properly generate 5 random objects to me. If you want 6 objects, just increase the iterations by one.
• Ace: Which one that you test? the php code is working but the javascript function code is not.
• CertainPerformance: Just press "Run code snippet". Your code already works.
• Ace: wait, how come it works when press run code snippet. I tried to do it in chrome it didn't work...
• Ace: Yes, turns out my code did work, thank you everybody.

Answer 1

Resolution - Replace i < names.length - 1 with i < names.length

The condition for executing the code block in for loop is wrong. Your code works fine, just generates 1 less result than needed.

MDN web docs on how for works.

function generateArray() {
 names = ["Fariz", "Falisha", "Mami", "Defina", "Fiska", "Papi"];
 newObj = [];
 for (i = 0; i < names.length; i++) {
 newObj[i] = {
 name: names[(Math.floor(Math.random() * (names.length)))],
 age: Math.floor(Math.random() * 40),
 communication: Math.floor(Math.random() * 20),
 skill: Math.floor(Math.random() * 20),
 experience: Math.floor(Math.random() * 20)
 }
 }
 return newObj;
}
console.log(generateArray());

Answer 2

names = ["Fariz", "Falisha", "Mami", "Defina", "Fiska", "Papi"];
arob = [
 {
 name: names[(Math.floor(Math.random() * (names.length)))],
 age: Math.floor(Math.random() * 40),
 communication: Math.floor(Math.random() * 20),
 skill: Math.floor(Math.random() * 20),
 experience: Math.floor(Math.random() * 20)
 }, 
 {
 name: names[(Math.floor(Math.random() * (names.length)))],
 age: Math.floor(Math.random() * 40),
 communication: Math.floor(Math.random() * 20),
 skill: Math.floor(Math.random() * 20),
 experience: Math.floor(Math.random() * 20)
 }, 
 {
 name: names[(Math.floor(Math.random() * (names.length)))],
 age: Math.floor(Math.random() * 40),
 communication: Math.floor(Math.random() * 20),
 skill: Math.floor(Math.random() * 20),
 experience: Math.floor(Math.random() * 20)
 }, 
 {
 name: names[(Math.floor(Math.random() * (names.length)))],
 age: Math.floor(Math.random() * 40),
 communication: Math.floor(Math.random() * 20),
 skill: Math.floor(Math.random() * 20),
 experience: Math.floor(Math.random() * 20)
 }, 
 {
 name: names[(Math.floor(Math.random() * (names.length)))],
 age: Math.floor(Math.random() * 40),
 communication: Math.floor(Math.random() * 20),
 skill: Math.floor(Math.random() * 20),
 experience: Math.floor(Math.random() * 20)
 }, 
 {
 name: names[(Math.floor(Math.random() * (names.length)))],
 age: Math.floor(Math.random() * 40),
 communication: Math.floor(Math.random() * 20),
 skill: Math.floor(Math.random() * 20),
 experience: Math.floor(Math.random() * 20)
 }
];

Inside the for loop: i < names.length;, instead of i < names.length - 1;

function generateArray() {
 names = ["Fariz", "Falisha", "Mami", "Defina", "Fiska", "Papi"];
 newObj = [];
 for(i=0; i < names.length; i++) {
 newObj[i] = {
 name: names[(Math.floor(Math.random() * (names.length)))],
 age: Math.floor(Math.random() * 40),
 communication: Math.floor(Math.random() * 20),
 skill: Math.floor(Math.random() * 20),
 experience: Math.floor(Math.random() * 20) }
 }
 return newObj;
}

This returns an array with all 6 objects.