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Dhairya Shah
Dhairya Shah

Posted on • Originally published at codewithsnowbit.hashnode.dev

Avoid the "delete" keyword in Javascript

Hello Folks ๐Ÿ‘‹

What's up friends, this is SnowBit here. I am a young, passionate and self-taught frontend web developer and have an intention to become a successful developer.

Today, I am here with an interesting and important topic. So, let's get ready to dive into the topic. Happy Reading!

getting ready


const snowbit = {
    age: 15,
    test: "abc"
}
delete snowbit.test

console.log(snowbit) // {age: 15}
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Here, it's better not to use delete to remove the property from the object snowbit.

Let me explain,
You should not use delete to remove the property from the object because this mutates the original and that can lead to unpredictable behaviours and becomes difficult to debug.

Instead, use the spread operator to create a new copy.

const snowbit = {
    age: 15,
    test: "abc"
}

const {test, ...newSnowbit} = snowbit

console.log(newSnowbit) //  {age: 15}
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Stay tuned for the next article, and make sure to follow if you haven't.


Thank you for reading, have a nice day!
Your appreciation is my motivation ๐Ÿ˜Š

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