Baseline Widely available
multiline
㯠RegExp
ã®ã¢ã¯ã»ãµã¼ããããã£ã§ãæ£è¦è¡¨ç¾ã§ m
ãã©ã°ã使ç¨ããã¦ãããã©ãããè¿ãã¾ãã
const regex1 = new RegExp("^football");
const regex2 = new RegExp("^football", "m");
console.log(regex1.multiline);
// Expected output: false
console.log(regex2.multiline);
// Expected output: true
console.log(regex1.test("rugby\nfootball"));
// Expected output: false
console.log(regex2.test("rugby\nfootball"));
// Expected output: true
解説
RegExp.prototype.multiline
ã®å¤ã¯ m
ãã©ã°ã使ããã¦ãããªãã° true
ã¨ãªããããã§ãªããã° false
ã«ãªãã¾ããm
ãã©ã°ã¯è¤æ°è¡ã®å
¥åæååãè¤æ°è¡ã¨ãã¦æ±ãããã¹ãã§ãããã¨ã示ãã¾ããä¾ãã°ãm
ãã©ã°ã使ãããå ´åã^
㨠$
ã¯æååã®å
¨ä½ã®å
é ã¨æ«å°¾ã ãã«ä¸è´ããç¹æ®æåãããæååå
ã®ããããã®è¡ã®å
é ã¨æ«å°¾ã«ä¸è´ããç¹æ®æåã«å¤åãã¾ãã
multiline
ã®è¨å®ã¢ã¯ã»ãµã¼ã¯ undefined
ã§ãããã®ããããã£ãç´æ¥å¤æ´ãããã¨ã¯ã§ãã¾ããã
const regex = /foo/m;
console.log(regex.multiline); // true
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