JavaScript split()

split()

문자열에서 원하는 값을 추출 배열로 반환합니다.

"문자열".split(구분자);
"문자열".split(정규식 표현);
"문자열".split(구분자, 갯수);

const str1 = "javascript reference";
const currentStr1 = str1.split('');      // ['j','a','v','a','s','c','r','i','p','t','','r','e','f','e','r','e','n','c','e']
const currentStr2 = str1.split(' ');     // ['javascript', 'reference']
const currentStr3 = str1.split('', 1);   // ['j']
const currentStr4 = str1.split('', 2);   // ['j', 'a']
const currentStr5 = str1.split(' ', 1);  // ['javascript']
const currentStr6 = str1.split(' ', 2);  // ['javascript', 'reference']
const currentStr7 = str1.split('j');     // ['', 'avascript reference']
const currentStr8 = str1.split('a');     // ['j', 'v', 'script reference']
const currentStr9 = str1.split('e');     // ['javascript r', 'f', 'r', 'nc', '']

const str2 = "java/script/refer/ence";
const currentStr10 = str2.split('/');    // ['java', 'script', 'refer', 'ence']

const str3 = "java&script&refer!ence";
const currentStr11 = str3.split('!');       // ['java&script&refer', 'ence']
const currentStr12 = str3.split('&');       // ['java', 'script', 'refer!ence']
const currentStr13 = str3.split(/&|\!/);    // ['java', 'script', 'refer', 'ence']

const str4 = "javascript reference";
const currentStr14 = str4.split('').join();                 //j,a,v,a,s,c,r,i,p,t, ,r,e,f,e,r,e,n,c,e
const currentStr15 = str4.split('').join('*');              //j*a*v*a*s*c*r*i*p*t* *r*e*f*e*r*e*n*c*e
const currentStr16 = str4.split('').reverse().join();       //e,c,n,e,r,e,f,e,r, ,t,p,i,r,c,s,a,v,a,j
const currentStr17 = str4.split('').reverse().join('/');    //e/c/n/e/r/e/f/e/r/ /t/p/i/r/c/s/a/v/a/j