Baseline Widely available
å°ãªãã¤ã³ã¼ã«æ¼ç®å (<=
) ã¯ãå·¦ã®ãªãã©ã³ããå³ã®ãªãã©ã³ãããå°ãããçããå ´åã« true
ãè¿ãããã以å¤ã®å ´å㯠false
ãè¿ãã¾ãã
console.log(5 <= 3);
// Expected output: false
console.log(3 <= 3);
// Expected output: true
// Compare bigint to number
console.log(3n <= 5);
// Expected output: true
console.log("aa" <= "ab");
// Expected output: true
æ§æ 解説
ãªãã©ã³ãã¯ãæ½è±¡é¢ä¿æ¯è¼ã¢ã«ã´ãªãºã ã使ç¨ãã¦æ¯è¼ããã¾ãã ãã®ã¢ã«ã´ãªãºã ã®æ¦è¦ã«ã¤ãã¦ã¯ãå°ãªãæ¼ç®åã®ããã¥ã¡ã³ããåç §ãã¦ä¸ããã
ä¾ æååã¨æååã®æ¯è¼console.log("a" <= "b"); // true
console.log("a" <= "a"); // true
console.log("a" <= "3"); // false
æååã¨æ°å¤ã®æ¯è¼
console.log("5" <= 3); // false
console.log("3" <= 3); // true
console.log("3" <= 5); // true
console.log("hello" <= 5); // false
console.log(5 <= "hello"); // false
æ°å¤ã¨æ°å¤ã®æ¯è¼
console.log(5 <= 3); // false
console.log(3 <= 3); // true
console.log(3 <= 5); // true
Number 㨠BigInt ã®æ¯è¼
console.log(5n <= 3); // false
console.log(3 <= 3n); // true
console.log(3 <= 5n); // true
è«çå¤ãnullãundefinedãNaN ã®æ¯è¼
console.log(true <= false); // false
console.log(true <= true); // true
console.log(false <= true); // true
console.log(true <= 0); // false
console.log(true <= 1); // true
console.log(null <= 0); // true
console.log(1 <= null); // false
console.log(undefined <= 3); // false
console.log(3 <= undefined); // false
console.log(3 <= NaN); // false
console.log(NaN <= 3); // false
仿§æ¸ ãã©ã¦ã¶ã¼ã®äºææ§ é¢é£æ
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