From 08bf2d57e3e7eab330754446b864c861e95f7be7 Mon Sep 17 00:00:00 2001 From: Feross Aboukhadijeh Date: Mon, 29 Feb 2016 08:47:14 -0800 Subject: [PATCH] code style --- lib/b64.js | 37 ++++++++++++++++--------------------- 1 file changed, 16 insertions(+), 21 deletions(-) diff --git a/lib/b64.js b/lib/b64.js index 1416920..f0e02ec 100644 --- a/lib/b64.js +++ b/lib/b64.js @@ -72,17 +72,17 @@ function tripletToBase64 (num) { } function encodeChunk (uint8, start, end) { - var temp + var tmp var output = [] for (var i = start; i < end; i += 3) { - temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2]) - output.push(tripletToBase64(temp)) + tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2]) + output.push(tripletToBase64(tmp)) } return output.join('') } function fromByteArray (uint8) { - var i, temp, len2 + var tmp var len = uint8.length var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes var output = '' @@ -90,27 +90,22 @@ function fromByteArray (uint8) { var maxChunkLength = 16383 // must be multiple of 3 // go through the array every three bytes, we'll deal with trailing stuff later - for (i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) { + for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) { parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength))) } // pad the end with zeros, but make sure to not forget the extra bytes - switch (extraBytes) { - case 1: - temp = uint8[len - 1] - output += lookup[temp >> 2] - output += lookup[(temp << 4) & 0x3F] - output += '==' - break - case 2: - temp = (uint8[len - 2] << 8) + (uint8[len - 1]) - output += lookup[temp >> 10] - output += lookup[(temp >> 4) & 0x3F] - output += lookup[(temp << 2) & 0x3F] - output += '=' - break - default: - break + if (extraBytes === 1) { + tmp = uint8[len - 1] + output += lookup[tmp >> 2] + output += lookup[(tmp << 4) & 0x3F] + output += '==' + } else if (extraBytes === 2) { + tmp = (uint8[len - 2] << 8) + (uint8[len - 1]) + output += lookup[tmp >> 10] + output += lookup[(tmp >> 4) & 0x3F] + output += lookup[(tmp << 2) & 0x3F] + output += '=' } parts.push(output)