如何在 javascript 中检查对象的属性数组是否为空

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

Answer 1

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);

Answer 2

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);