๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ

๊ถŒํ•œ์ฒ˜๋ฆฌ

 (1)
javascript ๊ถŒํ•œ ๊ด€๋ จํ•˜์—ฌ ๊ฐ’ ์ฒ˜๋ฆฌํ•˜๊ธฐ & ๋น„ํŠธ์—ฐ์‚ฐ์œผ๋กœ๋„ ๊ฐ€๋Šฅํ•˜๋‚˜, ๊ฐœ์ธ์ ์œผ๋กœ ์œ ์ง€๋ณด์ˆ˜ ๋ฐ ๋ณด๊ธฐ์— ๋ถˆํŽธ 1,2,4,8,16,32,64,128..... //1(๊ถŒํ•œ1), 2(๊ถŒํ•œ2), 4(๊ถŒํ•œ3) //๊ถŒํ•œ1๋งŒ ์„ ํƒ๋œ๊ฒฝ์šฐ 1 console.log(0 & 1) //0 False console.log(1 & 1) //1 var inputValue = 1; if(inputValue & 1) { //true ์ด๋ฒคํŠธ } if(inputValue & 2) { //False ์ด๋ฒคํŠธ } if(inputValue & 3) { //False ์ด๋ฒคํŠธ } if(inputValue & 4) { //False ์ด๋ฒคํŠธ } if(inputValue & 5) { //False ์ด๋ฒคํŠธ } //๊ถŒํ•œ1 ๊ณผ ๊ถŒํ•œ3 ๋‘˜๋‹ค ์„ ํƒ๋œ๊ฒฝ์šฐ 1+4 = 5 console.log(1 & 1) //..

ํ‹ฐ์Šคํ† ๋ฆฌํˆด๋ฐ”