how to loop through an object inside an array using vanilla javascript

Question

var people = [  
  {
    name: "Mike",
    age: 12,
    gender: "male"
  },{
    name: "Madeline",
    age: 80,
    gender: "female"
  }
]

How do i Loop through the array and log to the console "old enough" if they are 18 or older, and "not old enough" if thy aren't 18. how do i do it, any help, thanks in advance

check the forEach array prototype method https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach — Jay Lane, Mar 22 '18 at 18:48

score 1 · Answer 1 · answered Mar 22 '18 at 18:49

1

  for(const person of people)
    console.log(`is ${person.age < 18 ? "not" : ""} old enough`);

answered Mar 22 '18 at 18:49

Jonas Wilms

132,000
20
149
151

It's a duplicate question (with typos as well) that has already been answered in the comments... but this is a valid and correct (and short) answer as well. – Jochem Schulenklopper Mar 22 '18 at 21:40
1

@jochem yup i admit i was to lazy to search for a dupe – Jonas Wilms Mar 22 '18 at 22:14
Doesn't matter. Your answer was flagged for review (because it is short) and I approved it because it is concise and correct (even though the original question was a dupe). – Jochem Schulenklopper Mar 24 '18 at 15:03
1

@jochem thanks :) i usually try to write code that speaks for itself and animate the OP to look into the docs, some people however dont seem to get that – Jonas Wilms Mar 24 '18 at 15:29

Ryan Wilson · Accepted Answer · 2018-03-22T19:02:56.543

0

//Iterate your objects, check their age property to see if greater than equal to 18
for(let x = 0; x < people.length; x++) {
     if(people[x].age >= 18){
        console.log(people[x].name + " Is Old Enough");
     }else {
        console.log(people[x].name + " Is Not Old Enough");
     } 
}

edited Mar 22 '18 at 19:02

answered Mar 22 '18 at 18:48

Ryan Wilson

10,223
2
21
40

thanks Ryan, how do i log to the console a personalized message like "Mike is not old enough"? – Brukk Mar 22 '18 at 19:02
@Brukk edited my answer to show you how to prepend the person's name to the string printed to console. – Ryan Wilson Mar 22 '18 at 19:03
@Brukk You're welcome, glad I could help. – Ryan Wilson Mar 22 '18 at 19:07

score 0 · Answer 3 · answered Mar 22 '18 at 18:50

0

people.forEach((node)=>{
    if(node.age > 18) {
    console.log("old enough")
  }else {
    console.log("not old enough")
  }
})

answered Mar 22 '18 at 18:50

Murad Sofiyev

790
1
8
25

score 0 · Answer 4 · answered Mar 22 '18 at 18:51

0

You can use the forEach Method.

 people.forEach((element)=>{
     element.age >= 18 ? console.log('Old Enough') : console.log('Not old enough')
 });

answered Mar 22 '18 at 18:51

Jay Lane

1,379
15
28

score 0 · Answer 5 · answered Mar 22 '18 at 18:51

var people = [{
  name: "Mike",
  age: 12,
  gender: "male"
}, {
  name: "Madeline",
  age: 80,
  gender: "female"
}]

for (var i = 0; i < people.count; i++) {
  if (people[i].age < 18) {
    console.log("too young message");
  } else {
    console.log("old enough message");
  }
}

score 0 · Answer 6 · answered Mar 22 '18 at 18:52

0

var people = [
{ name: "Mike", age: 12, gender: "male" },{ name: "Madeline", age: 80, gender: "female" } ];

people.forEach(person=>{
  console.log(person.age >= 18 ? "Old enough": "Not old enough");
  return;
});

answered Mar 22 '18 at 18:52

George

2,330
3
15
36

score 0 · Answer 7 · answered Mar 22 '18 at 19:02

0

people.map(
  item => {
     console.log(
       (item.age>18)?item.name+' is old enough':item.name+' is not old enough'
     )
   }
 )

answered Mar 22 '18 at 19:02

Ashish Mishra

94
7

1

I would use forEach instead of map here. Map returns a new array, while forEach simply iterates over each element. – Erty Seidohl Mar 22 '18 at 19:31

how to loop through an object inside an array using vanilla javascript

7 Answers7