How to check if array of object's properties are empty in javascript

Question

I'm trying to make a validation in js to check if array of objects' properties are empty strings or not, to clarify more, i have an array that has objects inside, and i want to check for each object if it has an empty property (""), here is the code i've written but i'm not sure this is the correct way

const items = [
  { name: "something", quantity: "25", unit: "d" },
  { name: "something", quantity: "25", unit: "d" },
  { name: "something", quantity: "25", unit: "d" },
];

const validation = items.map((item) => {
  return Boolean(item.name && item.quantity && item.unit);
});

But it is just giving me an array like this:

[true, true, true]

It is like i want it to only give me the value true if all of the properties are not empty

Thanks

If you want to verify all entries without hardcoding property names then: const validation = items.every(i => Object.values(i).every(v => v)); — Amir Popovich
– Amir Popovich, Commented Apr 24, 2020 at 18:53

Nina Scholz · Accepted Answer · 2020-04-24 18:44:34Z

10

You could take Array#every

The every() method tests whether all elements in the array pass the test implemented by the provided function. It returns a Boolean value.

and get true if all values are not falsy.

const items = [
  { name: "something", quantity: "25", unit: "d" },
  { name: "something", quantity: "25", unit: "d" },
  { name: "something", quantity: "25", unit: "d" },
];

const validation = items.every(item => item.name && item.quantity && item.unit);

console.log(validation);

answered Apr 24, 2020 at 18:44

Nina Scholz

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Comments

score 1 · Accepted Answer · 2020-04-24 18:54:58Z

1

Refer below code validation will give true if array doesn't contain empty object else it will give false.

you shouldn't compare each property of object , instead compare object length each time

const items = [
  { name: "something", quantity: "25", unit: "d" },
  { name: "something", quantity: "25", unit: "d" },
  { name: "something", quantity: "25", unit: "d" },
];
let validation=true;

for(let i=0;i<items.lenght;++i){
   if(Object.keys(items[i]).length===0) {
   validation =false;
   break;
}
}

console.log(validation);

edited Apr 24, 2020 at 18:54

answered Apr 24, 2020 at 18:49

user10014185

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