è¦å: escape()
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⦠ãã®ä»é²ã§è¦å®ããã¦ãããã¹ã¦ã®è¨èªæ©è½ã¨åä½ã¯ã 1 ã¤ä»¥ä¸ã®æã¾ãããªãç¹æ§ãæã¡ãã¬ã¬ã·ã¼ãªä½¿ç¨ä¾ããªãå ´åã¯ããã®ä»æ§ããåé¤ããã¾ãã⦠⦠ããã°ã©ãã¼ã¯ãæ°ãã ECMAScript ã®ã³ã¼ããæ¸ãã¨ãã«ããããã®æ©è½ãåä½ã®åå¨ã使ç¨ããããä»®å®ããããã¦ã¯ããã¾ãããâ¦
The escape()
颿°ã¯ãç¹å®ã®æåã 16 鲿°ã®ã¨ã¹ã±ã¼ãã·ã¼ã±ã³ã¹ã§ç½®ãæããæ°ããæååãè¨ç®ãã¾ãã
ã¡ã¢: ãã®é¢æ°ã¯ã主㫠URL ã¯ã¨ãªã¼ (URL ã® ?
ã«ç¶ãé¨å) ã«ä½¿ããã¦ãã¾ããã â "\xHH
" ã®å½¢å¼ã使ç¨ãã¦ããµã¤ãã®æååãªãã©ã«ãã¨ã¹ã±ã¼ãããããã®ãã®ã§ã¯ããã¾ããã (HH 㯠2 æ¡ã® 16 鲿°ã§ãããããé«ãé¢ã® Unicode æåã«ã¯ã\xHH\xHHxHHãã¨ããå½¢å¼ã使ããã¾ãã)
æååãªãã©ã«å
ã®ã¨ã¹ã±ã¼ããããæåã¯ã \x
ã %
ã«ç½®ãæãã¦ããã decodeURIComponent()
颿°ã使ç¨ãããã¨ã§å±éãããã¨ãã§ãã¾ãã
str
ã¨ã³ã³ã¼ãããæååã
ç¹å®ã®æåãã¨ã¹ã±ã¼ããããæ°ããæååã
解説escape
颿°ã¯ã°ãã¼ãã«ãªãã¸ã§ã¯ãã®ããããã£ã§ããç¹æ®æå㯠@*_+-./
以å¤ã®æåã符å·åããã¾ãã
æåã® 16 鲿°å½¢å¼ã¨ãã¦ãæåã³ã¼ãã®å¤ã 0xFF
以ä¸ã«ãªãæå㯠2 æ¡ã®ã¨ã¹ã±ã¼ãã·ã¼ã±ã³ã¹ %xx
ãããã以ä¸ã®å ´å㯠4 æ¡ã®ã¨ã¹ã±ã¼ãã·ã¼ã±ã³ã¹ %uxxxx
ã使ããã¾ãã
escape("abc123"); // "abc123"
escape("äöü"); // "%E4%F6%FC"
escape("Ä"); // "%u0107"
// ç¹æ®æå
escape("@*_+-./"); // "@*_+-./"
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