πŸŒ‰ FE Algorithm Review 02

JBΒ·2022λ…„ 3μ›” 3일
0

Algorithms

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//기쑴에 μ‚¬μš©ν•˜λ˜ slice
arr = [1,2,3,4]
arr.slice(1,3)

str = "abcd"
str.slice(1,3)

// ==============================

//substr
//1. λ¬Έμžμ—΄μ„ 자λ₯΄λŠ”데 μ‚¬μš©
//2. 첫번째 μΈμžμ— λ“€μ–΄μ˜¨ μΈλ±μŠ€λΆ€ν„° 자λ₯Έλ‹€
//3. λ‘λ²ˆμ§Έ 인자둜 λ“€μ–΄μ˜¨ 갯수만큼 자λ₯Έλ‹€

let str = "abcd"
str.substr(1) //첫번째 μΈλ±μŠ€λΆ€ν„° λκΉŒμ§€ 잘라쀌
str.substr(1,2) //자기 μžμ‹ μ„ ν¬ν•œν•΄μ„œ 총 λ‘κ°œμ˜ λ¬Έμžμ—΄μ„ 잘라였게 λ˜λŠ”κ±°μž„

// ==============================

//substring

//1. λ¬Έμžμ—΄μ„ 자λ₯΄λŠ”데 μ‚¬μš©
//2. 첫번째 μΈμžμ— λ“€μ–΄μ˜¨ μΈλ±μŠ€λΆ€ν„° 자λ₯Έλ‹€
//3. λ‘λ²ˆμ§Έ 인자둜 λ“€μ–΄μ˜¨ 인덱슀λ₯Ό μ œμ™Έν•œ μ•žμ—κΉŒμ§€λ§Œ 자λ₯Έλ‹€

let str = "abcd"
str.substring(1,4)
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