JavaScript trim() / trimStart() / trimEnd()

trim() / trimStart() / trimEnd()

문자열의 앞/뒤 공백을 제거합니다.

trim() : 문자열의 앞/뒤 공백을 제거합니다 trimStart() : 문자열의 앞 공백을 제거합니다 trimEnd() : 문자열의 뒤 공백을 제거합니다

const str1 = "     javascript     ";
const currentStr1 = str1.trim();

document.querySelector(".sample03_N1").innerHTML = "1";
document.querySelector(".sample03_Q1").innerHTML = str1;
document.querySelector(".sample03_M1").innerHTML = "trim()";
document.querySelector(".sample03_P1").innerHTML = currentStr1;

const str2 = "     javascript     ";
const currentStr2 = str2.trimStart();

document.querySelector(".sample03_N2").innerHTML = "2";
document.querySelector(".sample03_Q2").innerHTML = str2;
document.querySelector(".sample03_M2").innerHTML = "trimStart()";
document.querySelector(".sample03_P2").innerHTML = currentStr2;

const str3 = "     javascript     ";
const currentStr3 = str3.trimEnd();

document.querySelector(".sample03_N3").innerHTML = "3";
document.querySelector(".sample03_Q3").innerHTML = str3;
document.querySelector(".sample03_M3").innerHTML = "trimEnd()";
document.querySelector(".sample03_P3").innerHTML = currentStr3;