JavaScript Convert bytes to human-readable string
Last Updated :
12 Jun, 2023
Given the size of a file (in Bytes), the task is to convert it into human-readable form using JavaScript. Here are a few methods to discuss.
Example 1: This example converts the file Size(in Bytes) into human-readable form. It shows the values in decimal and for less than 1024 Bytes, it remains in Bytes.
Javascript
let size = function (bytes) {
if (bytes === 0) {
return "0.00 B" ;
}
let e = Math.floor(Math.log(bytes) / Math.log(1024));
return (bytes / Math.pow(1024, e)).toFixed(2) +
' ' + ' KMGTP' .charAt(e) + 'B' ;
}
let bytes = 2007777777770;
console.log(bytes + " bytes = " + size(bytes));
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Output
2007777777770 bytes = 1.83 TB
Example 2: This example converts the file Size(in Bytes) into human-readable form. It shows the values in decimal and for less than 1024 Bytes, it remains in Bytes. But, with a different approach.
Javascript
function getSize(size) {
let sizes = [ ' Bytes' , ' KB' , ' MB' , ' GB' ,
' TB' , ' PB' , ' EB' , ' ZB' , ' YB' ];
for (let i = 1; i < sizes.length; i++) {
if (size < Math.pow(1024, i))
return (Math.round((size / Math.pow(
1024, i - 1)) * 100) / 100) + sizes[i - 1];
}
return size;
}
let bytes = 1024;
console.log(bytes + " bytes = " + getSize(bytes));
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