JavaScriptã®ãƒ“ットシフト(ビット演算) - Qiitavar num = 120 console.log(num >> 0); //120 console.log(num >> 1); //60 console.log(num >> 2); //30 console.log(num << 1); //240 console.log(num << 2); //480 console.log('abc' << 2); //æ–‡å—列ã®å ´åˆã¯0ãŒè¿”ã‚‹ã¿ãŸã„ var num = 12.123 console.log(num >> 0); //12 console.log(num >> 1); //6 console.log(num >> 2); //3 console.log(num << 1); //24 console.log(num << 2); //48
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