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[Search] ๊ฒ€์ƒ‰ ์œ ํ˜• ์‚ฌ์ดํŠธ ๋งŒ๋“ค๊ธฐ02 includes()๋ฅผ ํ†ตํ•ด ๊ฒ€์ƒ‰ ์‚ฌ์ดํŠธ ์ œ์ž‘ํ•˜๊ธฐ ์ด๋ฒˆ ์‹œ๊ฐ„์—๋Š” ๋ฌธ์ž์—ด ๋ฉ”์„œ๋“œ ์ค‘ ํ•˜๋‚˜์ธ includes() ๋ฉ”์„œ๋“œ๋ฅผ ํ†ตํ•ด ๊ฒ€์ƒ‰ ์‚ฌ์ดํŠธ๋ฅผ ์ œ์ž‘ํ•ด๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค! ๋จผ์ € includes() ๋ฉ”์„œ๋“œ์— ๋Œ€ํ•ด ์งง๊ฒŒ ์•Œ์•„๋ณด๊ณ  ์‚ฌ์ดํŠธ ์‹ค์Šต์— ๋“ค์–ด๊ฐ€๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค! #1. includes() includes() ๋ฉ”์„œ๋“œ๋Š” ๋Œ€์†Œ๋ฌธ์ž๋ฅผ ๊ตฌ๋ถ„ํ•˜๋ฉฐ ๋ฌธ์ž์—ด ๋‚ด์—์„œ ๊ฒ€์ƒ‰ํ•  ๋ฌธ์ž์˜ ํฌํ•จ ์—ฌ๋ถ€์— ๋”ฐ๋ผ ๋ถˆ๋ฆฐ(true, false)์„ ๋ฐ˜ํ™˜ํ•ฉ๋‹ˆ๋‹ค. โœ๏ธ์˜ˆ์ œ ์ฝ”๋“œ const str1 = "javascript reference"; const currentStr1 = str1.includes("javascript"); // true const currentStr2= str1.includes("j"); // true const currentStr3= str1.. 2022. 8. 17.
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