æ¸ç® (-)
Baseline
Widely available
This feature is well established and works across many devices and browser versions. Itâs been available across browsers since 2015å¹´7æ.
æ¸ç®æ¼ç®å (-) 㯠2 ã¤ã®ãªãã©ã³ãã®éã§æ¸ç®ãããããã®å·®ãçæãã¾ãã
試ãã¦ã¿ã¾ããã
console.log(5 - 3);
// Expected output: 2
console.log(3.5 - 5);
// Expected output: -1.5
console.log(5 - "hello");
// Expected output: NaN
console.log(5 - true);
// Expected output: 4
æ§æ
js
x - y;
ä¾
æ°å¤ã®æ¸ç®
js
5 - 3; // 2
3 - 5; // -2
éæ°ã®æ¸ç®
js
"foo" - 3; // NaN
ä»æ§æ¸
| Specification |
|---|
| ECMAScript® 2027 Language Specification # sec-subtraction-operator-minus |