Question

How to allocate 1MB in JavaScript

Answer 1

const buffer = new Uint8Array(1024 * 1024); // Allocates 1MB = 1,048,576 bytes

console.log(buffer.length); 


/*
run:

1048576

*/

 

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Answer 2

const array = new Array(1024 * 1024).fill(0); // Allocates 1MB = 1,048,576 bytes

console.log(array.length);


/*
run:

1048576

*/

 

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Answer 3

const buffer = Buffer.alloc(1024 * 1024); // Allocates 1 MB = 1,048,576 bytes

console.log(buffer.length); 


/*
run:

1048576

*/

 

70+ SQL courses for beginners and professionals