Baseline Widely available
isFinite()
ì ì í¨ìë 주ì´ì§ ê°ì´ ì íìì¸ì§ íë³í©ëë¤. íìí ê²½ì° ë§¤ê°ë³ì를 먼ì ì«ìë¡ ë³íí©ëë¤.
function div(x) {
if (isFinite(1000 / x)) {
return "Number is NOT Infinity.";
}
return "Number is Infinity!";
}
console.log(div(0));
// Expected output: "Number is Infinity!""
console.log(div(1));
// Expected output: "Number is NOT Infinity."
구문 매ê°ë³ì
testValue
ì ííì§ íë³í ê°.
testValue
ê° ì ëë ìì Infinity
, NaN
, ëë undefined
ë©´ false
, ìëë©´ true
.
isFinite()
ì ìµìì í¨ìë¡ ì´ë¤ ê°ì²´ìë ì°ê²°ëì§ ìììµëë¤.
ì«ìê° ì íìì¸ì§ íë³í기 ìí´ isFinite()
ì ì¬ì©í ì ììµëë¤. isFinite()
ì 주ì´ì§ ì를 ê²ì¬í´ ê·¸ ê°ì´ NaN
, ìì 무íë, ëë ìì 무íëì´ë©´ false
를 ë°íí©ëë¤. ê·¸ë ì§ ìì¼ë©´ true
를 ë°íí©ëë¤.
isFinite()
ì¬ì©í기
isFinite(Infinity); // false
isFinite(NaN); // false
isFinite(-Infinity); // false
isFinite(0); // true
isFinite(2e64); // true
isFinite(910); // true
isFinite(null); // true, would've been false with the
// more robust Number.isFinite(null)
isFinite("0"); // true, would've been false with the
// more robust Number.isFinite("0")
ëª
ì¸ì ë¸ë¼ì°ì í¸íì± ê°ì´ 보기
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4