From 43a5cac2eff22c21071800e13bef12af9d3a37d0 Mon Sep 17 00:00:00 2001 From: Florian Merz Date: Thu, 11 Feb 2021 13:12:08 +0100 Subject: unslug zh-tw: move --- .../index.html | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 files/zh-tw/conflicting/web/javascript/guide/functions_b2cd05cbfe188215dc2e3f972d293ed6/index.html (limited to 'files/zh-tw/conflicting/web/javascript/guide/functions_b2cd05cbfe188215dc2e3f972d293ed6/index.html') diff --git a/files/zh-tw/conflicting/web/javascript/guide/functions_b2cd05cbfe188215dc2e3f972d293ed6/index.html b/files/zh-tw/conflicting/web/javascript/guide/functions_b2cd05cbfe188215dc2e3f972d293ed6/index.html new file mode 100644 index 0000000000..db213a465e --- /dev/null +++ b/files/zh-tw/conflicting/web/javascript/guide/functions_b2cd05cbfe188215dc2e3f972d293ed6/index.html @@ -0,0 +1,24 @@ +--- +title: isFinite 函數 +slug: >- + Web/JavaScript/Obsolete_Pages/Obsolete_Pages/Obsolete_Pages/預先定義的函數/isFinite_函數 +translation_of: Web/JavaScript/Guide/Functions +translation_of_original: Web/JavaScript/Guide/Obsolete_Pages/Predefined_Functions/isFinite_Function +--- +

 

+
+

isFinite 函數

+

isFinite 函數會對參數求值,來判斷是否是有限的數字。isFinite 的語法如下︰

+
isFinite(number)
+
+

此處的 number 就是要求值的數字。

+

如果參數是 NaN、正無限大、負無限大,這個方法就會返回 false,否則就會返回 true

+

以下的代碼會檢查客戶端的輸入,來判斷是否是有限的數字。

+
if(isFinite(ClientInput))
+{
+   /* 適當的處理 */
+}
+
+
+

{{ PreviousNext("Core_JavaScript_1.5_教學:預先定義的函數:eval_函數", "Core_JavaScript_1.5_教學:預先定義的函數:isNaN_函數") }}

+

{{ languages( { "en": "en/Core_JavaScript_1.5_Guide/Predefined_Functions/isFinite_Function", "fr": "fr/Guide_JavaScript_1.5/Fonctions_pr\u00e9d\u00e9finies/La_fonction_isFinite", "ja": "ja/Core_JavaScript_1.5_Guide/Predefined_Functions/isFinite_Function", "pl": "pl/Przewodnik_po_j\u0119zyku_JavaScript_1.5/Funkcje_predefiniowane/Funkcja_isFinite" } ) }}

-- cgit v1.2.3-54-g00ecf