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 | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 files/zh-tw/conflicting/web/javascript/guide/functions_effb9b1bcc102a5f6df7f1785ce89033/index.html (limited to 'files/zh-tw/conflicting/web/javascript/guide/functions_effb9b1bcc102a5f6df7f1785ce89033/index.html') diff --git a/files/zh-tw/conflicting/web/javascript/guide/functions_effb9b1bcc102a5f6df7f1785ce89033/index.html b/files/zh-tw/conflicting/web/javascript/guide/functions_effb9b1bcc102a5f6df7f1785ce89033/index.html new file mode 100644 index 0000000000..fb257f891c --- /dev/null +++ b/files/zh-tw/conflicting/web/javascript/guide/functions_effb9b1bcc102a5f6df7f1785ce89033/index.html @@ -0,0 +1,17 @@ +--- +title: eval 函數 +slug: Web/JavaScript/Obsolete_Pages/Obsolete_Pages/Obsolete_Pages/預先定義的函數/eval_函數 +translation_of: Web/JavaScript/Guide/Functions +translation_of_original: Web/JavaScript/Guide/Obsolete_Pages/Predefined_Functions/eval_Function +--- +

 

+
+

eval 函數

+

eval 函數無須參考實際的物件，就可以對 JavaScript 代碼的字串直接求值。eval 語法如下︰

+
eval(expr)
+
+

此處 expr 就是要被求值的字串。

+

如果字串表示成表達式，eval 就會對表達式求值。如果參數（expr）表示成一個以上的 JavaScript 語句，eval 就會對語句求值。eval 代碼的作用域等同於呼叫端代碼的作用域。不要用 eval 來對算術表達式求值，JavaScript 會自動的對算術表達式來求值。

+
+

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

+

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

-- cgit v1.2.3-54-g00ecf