From 64b4e056cbecf88ac477ef257bfa902c8bafa963 Mon Sep 17 00:00:00 2001 From: Dorian Niemiec Date: Wed, 28 Aug 2024 13:24:15 +0200 Subject: [PATCH] Make sizify() function more concise and readable --- src/utils/sizify.js | 35 +++++++++++++++++------------------ 1 file changed, 17 insertions(+), 18 deletions(-) diff --git a/src/utils/sizify.js b/src/utils/sizify.js index 203746c..688ed54 100644 --- a/src/utils/sizify.js +++ b/src/utils/sizify.js @@ -1,26 +1,25 @@ function sizify(bytes, addI) { - if (bytes == 0) return "0"; + if (bytes === 0) return "0"; if (bytes < 0) bytes = -bytes; + const prefixes = ["", "K", "M", "G", "T", "P", "E", "Z", "Y", "R", "Q"]; - let prefixIndex = Math.floor( - Math.log2 ? Math.log2(bytes) / 10 : Math.log(bytes) / (Math.log(2) * 10), + const prefixIndex = Math.min( + Math.floor(Math.log2(bytes) / 10), + prefixes.length - 1, ); - if (prefixIndex >= prefixes.length - 1) prefixIndex = prefixes.length - 1; - let prefixIndexTranslated = Math.pow(2, 10 * prefixIndex); - let decimalPoints = - 2 - - Math.floor( - Math.log10 - ? Math.log10(bytes / prefixIndexTranslated) - : Math.log(bytes / prefixIndexTranslated) / Math.log(10), - ); - if (decimalPoints < 0) decimalPoints = 0; - return ( + const prefixIndexTranslated = Math.pow(2, 10 * prefixIndex); + const decimalPoints = Math.max( + 2 - Math.floor(Math.log10(bytes / prefixIndexTranslated)), + 0, + ); + + const size = Math.ceil((bytes / prefixIndexTranslated) * Math.pow(10, decimalPoints)) / - Math.pow(10, decimalPoints) + - prefixes[prefixIndex] + - (prefixIndex > 0 && addI ? "i" : "") - ); + Math.pow(10, decimalPoints); + const prefix = prefixes[prefixIndex]; + const suffix = prefixIndex > 0 && addI ? "i" : ""; + + return size + prefix + suffix; } module.exports = sizify;