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목록연산자 (1)
data life
JS - 조건문
if ... else 문 if (condition){ /// condition === true } else { /// condition === false } * else 는 선택사항 isNaN 함수 - NaN (Not-A-Number) 판별 const age = parseInt(prompt("How old are you?")); if (isNaN(age)) { console.log("Please write a number"); //true } else { //false console.log("All right!"); } else if - 조건문 추가 const age = parseInt(prompt("How old are you?")); if (isNaN(age)) { console.log("Please..
Front-end/JavaScript
2022. 10. 27. 23:34