I am trying to remove empty array object from my array. I have tried filter method but wont work as my array is complex one.
const input =
[
{ daysIn: 1, daysOut: 1, category: "Day Shift" },
{ daysIn: 1, daysOut: 1, category: "Day Shift" },
{ daysIn: null, daysOut: null, category: null }
];
You could use Array.filter with Array.some to include any object which has any non-null value:
const data = [{ daysIn: 1, daysOut: 1, category: "Day Shift" },{ daysIn: 1, daysOut: 1, category: "Day Shift" },{ daysIn: null, daysOut: null, category: null }];
const result = data.filter(o => Object.values(o).some(v => v !== null));
console.log(result);
every or some. LOL
some removes the need to negate the result, so it makes it easier to read IMO.You could use filter and every
Approach here is ot reject every objects that have the all falsy values
x == null will return true for x of null/undefined
const data = [
{ daysIn: 1, daysOut: 1, category: "Day Shift" },
{ daysIn: 1, daysOut: 1, category: "Day Shift" },
{ daysIn: null, daysOut: null, category: null },
{}
];
const res = data.filter((d) => !Object.values(d).every((v) => v == null));
console.log(res);You can check length of object to determine it's empty or not.
Update solution:
const data = [
{ daysIn: 1, daysOut: 1, category: "Day Shift" },
{ daysIn: 1, daysOut: 1, category: "Day Shift" },
{ daysIn: null, daysOut: null, category: null }];
const filterEmptyObject = data => data.filter(obj => Object.values(obj).every(o => {
if(!o) {
// this will also check for undefined, empty string, 0, false, NaN.
return false;
}
return true;
}));
const filteredData = filterEmptyObject(data);
console.log(filteredData)
You should use every or some based on your requirement.
every when you want to filter value if any object having all properties is nullsome when you want to filter value if any object having any property is nullIn your case "remove empty array object", I decided use every.
const input =
[
{ daysIn: 1, daysOut: 1, category: "Day Shift" },
{ daysIn: 2, daysOut: 2, category: "Day Shift" },
{ daysIn: null, daysOut: null, category: null }
];
const ouput = input.filter(r => Object.values(r).every(c => c !== null));
console.log(ouput);