回答編集履歴
1
厳密モードにし忘れていて、varとか抜けていた。ES5はこれだから嫌なんだよ
test
CHANGED
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@@ -18,6 +18,8 @@
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```JavaScript
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21
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"use strict";
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+
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function stringToCharCodeList(str) {
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return Array.prototype.map.call(str, function(c) {
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@@ -72,7 +74,7 @@
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for (var i = 0, len = list.length; i < len; i += sliceSize) {
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76
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75
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-
slicedList = list.slice(i, i + sliceSize);
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var slicedList = list.slice(i, i + sliceSize);
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str += String.fromCharCode.apply(null, slicedList);
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@@ -86,15 +88,15 @@
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function checkConvert(str) {
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-
list = stringToCharCodeList(str);
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var list = stringToCharCodeList(str);
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90
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-
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91
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convertedStr = charCodeListToString(list);
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var convertedStr = charCodeListToString(list);
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-
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-
splitConvertedStr = charCodeListToStringSplit(list);
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var splitConvertedStr = charCodeListToStringSplit(list);
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-
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-
splitForConvertedStr = charCodeListToStringSplitFor(list);
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var splitForConvertedStr = charCodeListToStringSplitFor(list);
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-
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-
sliceConvertedStr = charCodeListToStringSlice(list, 8);
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var sliceConvertedStr = charCodeListToStringSlice(list, 8);
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console.log(str +
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@@ -134,6 +136,8 @@
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```
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"use strict";
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var Benchmark = require('benchmark')
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@@ -180,7 +184,7 @@
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for (var i = 0, len = list.length; i < len; i += sliceSize) {
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-
slicedList = list.slice(i, i + sliceSize);
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var slicedList = list.slice(i, i + sliceSize);
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str += String.fromCharCode.apply(null, slicedList);
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@@ -294,27 +298,27 @@
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```
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296
300
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297
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Bulk x
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301
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Bulk x 7,640 ops/sec ±3.31% (79 runs sampled)
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298
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-
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302
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299
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Split x 50
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303
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Split x 505 ops/sec ±2.49% (76 runs sampled)
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300
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-
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304
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301
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-
Split For x
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305
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Split For x 502 ops/sec ±2.55% (75 runs sampled)
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302
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-
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306
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+
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303
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-
Slice 1 x 9
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307
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Slice 1 x 119 ops/sec ±2.77% (65 runs sampled)
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304
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-
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308
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+
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305
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-
Slice 8 x
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309
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Slice 8 x 740 ops/sec ±2.92% (76 runs sampled)
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306
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-
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310
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307
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Slice 64 x 2,
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311
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Slice 64 x 2,301 ops/sec ±2.49% (79 runs sampled)
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308
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-
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312
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+
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309
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-
Slice 256 x 3,1
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313
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Slice 256 x 3,166 ops/sec ±2.06% (80 runs sampled)
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310
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-
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314
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311
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Slice 1024 x 3,4
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315
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Slice 1024 x 3,461 ops/sec ±2.14% (80 runs sampled)
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312
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-
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316
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313
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-
Slice 4096 x 3,5
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317
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Slice 4096 x 3,455 ops/sec ±2.13% (79 runs sampled)
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314
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-
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318
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315
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Slice 16384 x 3,
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319
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Slice 16384 x 3,392 ops/sec ±2.57% (77 runs sampled)
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316
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-
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320
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317
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Slice 32767 x 3,
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321
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Slice 32767 x 3,398 ops/sec ±1.97% (78 runs sampled)
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318
322
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319
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```
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320
324
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