JS Interview: Remove Null and Undefined Values from an Object 🔥

Welcome, In this video, you will learn how to remove null and undefined values from an object in JavaScript. When working with objects, it is common to have properties with null or undefined values. However, in some cases, you may want to filter out these properties to create a new object that only contains the non-null and non-undefined properties.

The video will cover two different approaches to achieve this. The first approach uses the reduce() method to iterate over the object and filter out the null and undefined values. The second approach uses the filter() method to create a new array that only contains the non-null and non-undefined key-value pairs from the object.

By the end of this video, you will have a good understanding of how to remove null and undefined values from an object in JavaScript using these two different approaches.

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[shivamgoyal]

Bro what theme and plugin you using for customize Vscode

[rajchowhan]

I have a question howto creat tron paper effect in css? Please reply

[Besaoct]

Upload Back-end Part of React E commerce please

[about_]

reactjs ma insert data datbase ma 1row na data insert 2row na data null

[RohitSingh-skzs]

Input an array of objects sample = [{name: "Shraddha", lastname : "goel", rollNo: 18}]
& return the students with addition key which tells whether the rollNo is even or odd
Output: [{name: "Shraddha", "lastname" : "goel", rollNo: 18, type: 'even' }],
please give me

[azeemdeveloper]

see this approach : const filteredObj_3 = {};
for(const key in obj){
if(obj[key] !== null && obj[key] !== undefined){
filteredObj_3[key] = obj[key]
}
}

[technicalabhi]

Instead of doing this you can also use this:
function removeNullUndefined(obj) {
for (var key in obj) {
if (obj.hasOwnProperty(key)) {
if (obj[key] === null || typeof obj[key] === 'undefined') {
delete obj[key];
}
}
}
return obj;
}

[tusharshrivas]

const obj = {
a: 1,
b: undefined,
c: null,
d: "hello",
e:undefined,
f:null

};

for (const prop in obj) {
if (typeof obj[prop] === "undefined" || obj[prop] === null) {
delete obj[prop];
}
}

console.log(obj);