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Run results for:
Bitwise vs String feature flags
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Browser:
Chrome 131
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Bitwise - Existing
92254696.0 Ops/sec
Bitwise - Non-Existing
92684296.0 Ops/sec
String - Existing
92073784.0 Ops/sec
String - Non-Existing
91427152.0 Ops/sec
Script Preparation code:
var BITWISE_FEATURE_A = 1; var BITWISE_FEATURE_B = BITWISE_FEATURE_A<<1; var BITWISE_FEATURE_C = BITWISE_FEATURE_B<<1; var BITWISE_ENABLED = BITWISE_FEATURE_A ^ BITWISE_FEATURE_C; var STRING_FEATURE_A = "yellow_scrollbar"; var STRING_FEATURE_B = "green_box"; var STRING_FEATURE_C = "blue_banner"; var STRING_ENABLED = STRING_FEATURE_A + STRING_FEATURE_C;
Tests:
Bitwise - Existing
BITWISE_ENABLED & BITWISE_FEATURE_A == BITWISE_FEATURE_A
Bitwise - Non-Existing
BITWISE_ENABLED & BITWISE_FEATURE_B == BITWISE_FEATURE_B
String - Existing
STRING_ENABLED.indexOf(STRING_FEATURE_C) != -1
String - Non-Existing
STRING_ENABLED.indexOf(STRING_FEATURE_B) != -1