Add remove property js blog

blog_posts/javascript-remove-object-property.md

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+---
+title: How do I remove a property from a JavaScript object?
+type: question
+tags: javascript,object
+authors: chalarangelo
+cover: blog_images/brown-bird.jpg
+excerpt: Ever wanted to delete a property from a JavaScript object? Here are a few way you can accomplish that.
+---
+
+When working with objects in JavaScript, you might come across situations where a property should be completely removed from an object. To accomplish that, there a few options you have at your disposal:
+
+### Set the property to undefined
+
+Setting a property to `undefined` isn't generally optimal, as the property itself will still be present in the object, albeit `undefined`. It also mutates the original object, which might be undesired. You might want to use this in cases where you check for the property's value or truthiness but not its presence.
+
+```js
+const pet = {
+  species: 'dog',
+  age: 3,
+  name: 'celeste',
+  gender: 'female'
+};
+
+pet.gender = undefined;
+Object.keys(pet); // ['species', 'age', 'name', 'gender']
+```
+
+### Use the delete operator
+
+The `delete` operator is technically the correct way to remove a property from a JavaScript object. Unlike the previous option, `delete` will completely remove the property from the object, but it will still cause a mutation.
+
+```js
+const pet = {
+  species: 'dog',
+  age: 3,
+  name: 'celeste',
+  gender: 'female'
+};
+
+delete pet.gender;
+Object.keys(pet); // ['species', 'age', 'name']
+```
+
+### Use object destructuring
+
+Using the spread syntax, (`...`), you can destructure and assign the object with specific properties omitted to a new object. This trick comes in handy especially if you want to remove a subset of properties instead of just one and has the added benefit of not mutating the original object.
+
+```js
+const pet = {
+  species: 'dog',
+  age: 3,
+  name: 'celeste',
+  gender: 'female'
+};
+
+const { gender, ...newPet } = pet;
+Object.keys(pet); // ['species', 'age', 'name', 'gender]
+Object.keys(newPet); // ['species', 'age', 'name']
+```
+
+**Image credit:** [Alfred Kenneally](https://unsplash.com/@alken?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText) on [Unsplash](https://unsplash.com?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText)