Baseline Widely available
do...while
æã¯æå®ãããæãããã¹ãæ¡ä»¶ã false ã«è©ä¾¡ãããã¾ã§å®è¡ããã«ã¼ãã使ãã¾ããæ¡ä»¶ã¯æãå®è¡ããå¾ã«è©ä¾¡ããã¾ããçµæã¨ãã¦ãæå®ãããæã¯å°ãªãã¨ã 1 åã¯å®è¡ããã¾ãã
let result = "";
let i = 0;
do {
i = i + 1;
result = result + i;
} while (i < 5);
console.log(result);
// Expected output: "12345"
æ§æ
do
statement
while (condition);
statement
å°ãªãã¨ã 1 åã¯å®è¡ãããæ¡ä»¶ãçã¨è©ä¾¡ããããã³ã«åå®è¡ãããæãã«ã¼ãå
ã§è¤æ°ã®æãå®è¡ããã«ã¯ããããã®æãã°ã«ã¼ãåããããã«ãããã¯æ ({ /* ... */ }
) ã使ã£ã¦ãã ããã
condition
ã«ã¼ããééããå¾ãã¨ã«è©ä¾¡ãããå¼ããã condition
ã true ã«è©ä¾¡ããããªããstatement
ã¯å度å®è¡ããã¾ããcondition
ã false ã«è©ä¾¡ãããã¨ãã¯ãå¶å¾¡ã do...while
ã«ç¶ãæã¸æ¸¡ãã¾ãã
ã¡ã¢: break
æã使ãã¨ãcondition
ã false ã¨è©ä¾¡ãããåã«ã«ã¼ãã忢ãããã¨ãã§ãã¾ãã
do...while
ã®ä½¿ç¨
次ã®ä¾ã§ã¯ã do...while
ã«ã¼ããå°ãªãã¨ã 1 åã¯å®è¡ãã i
ã 5 ããå°ããã¨ããæ¡ä»¶ãæºãããªããªãã¾ã§å復ãã¾ãã
let result = "";
let i = 0;
do {
i += 1;
result += `${i} `;
} while (i > 0 && i < 5);
// Despite i === 0 this will still loop as it starts off without the test
console.log(result);
æ¡ä»¶ã¨ãã¦ä»£å
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å ´åã«ãã£ã¦ã¯ãæ¡ä»¶ã¨ãã¦ä»£å
¥ã使ç¨ãããã¨ã¯æå³ãããã¾ãããããããã®å ´åãæ£ããæ¹æ³ã¨ééã£ãæ¹æ³ãããã¾ããwhile
ã®ããã¥ã¡ã³ãã§ã¯ã代å
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