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jsの>> 説明

Last updated at Posted at 2019-12-31

アプリを作りたいと思いWEBに落ちているコードを参考にしていると、分からないコードがあったのでググったり動かしてみて分かった事を書いていきます。

結論

var x = 23
var x2 = x >> 1;
var x22 = Math.floor(x / 2);

console.log(x2 + ' , ' + x22)  //11 , 11

要するに
x >> p

Math.floor(x / 2**p)
は同じ値を返すということ

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