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Make sizify() function more concise and readable

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This commit is contained in:
Dorian Niemiec 2024-08-28 13:24:15 +02:00
parent 0318047078
commit 64b4e056cb
1 changed files with 17 additions and 18 deletions
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33
src/utils/sizify.js
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@ -1,26 +1,25 @@
function sizify(bytes, addI) { function sizify(bytes, addI) {
if (bytes == 0) return "0"; if (bytes === 0) return "0";
if (bytes < 0) bytes = -bytes; if (bytes < 0) bytes = -bytes;
const prefixes = ["", "K", "M", "G", "T", "P", "E", "Z", "Y", "R", "Q"]; const prefixes = ["", "K", "M", "G", "T", "P", "E", "Z", "Y", "R", "Q"];
let prefixIndex = Math.floor( const prefixIndex = Math.min(
Math.log2 ? Math.log2(bytes) / 10 : Math.log(bytes) / (Math.log(2) * 10), Math.floor(Math.log2(bytes) / 10),
prefixes.length - 1,
); );
if (prefixIndex >= prefixes.length - 1) prefixIndex = prefixes.length - 1; const prefixIndexTranslated = Math.pow(2, 10 * prefixIndex);
let prefixIndexTranslated = Math.pow(2, 10 * prefixIndex); const decimalPoints = Math.max(
let decimalPoints = 2 - Math.floor(Math.log10(bytes / prefixIndexTranslated)),
2 - 0,
Math.floor(
Math.log10
? Math.log10(bytes / prefixIndexTranslated)
: Math.log(bytes / prefixIndexTranslated) / Math.log(10),
); );
if (decimalPoints < 0) decimalPoints = 0;
return ( const size =
Math.ceil((bytes / prefixIndexTranslated) * Math.pow(10, decimalPoints)) / Math.ceil((bytes / prefixIndexTranslated) * Math.pow(10, decimalPoints)) /
Math.pow(10, decimalPoints) + Math.pow(10, decimalPoints);
prefixes[prefixIndex] + const prefix = prefixes[prefixIndex];
(prefixIndex > 0 && addI ? "i" : "") const suffix = prefixIndex > 0 && addI ? "i" : "";
);
return size + prefix + suffix;
} }
module.exports = sizify; module.exports = sizify;