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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..129d1ceaff --- /dev/null +++ b/files/zh-tw/conflicting/web/javascript/guide/functions_effb9b1bcc102a5f6df7f1785ce89033/index.html @@ -0,0 +1,18 @@ +--- +title: eval 函數 +slug: conflicting/Web/JavaScript/Guide/Functions_effb9b1bcc102a5f6df7f1785ce89033 +translation_of: Web/JavaScript/Guide/Functions +translation_of_original: Web/JavaScript/Guide/Obsolete_Pages/Predefined_Functions/eval_Function +original_slug: Web/JavaScript/Obsolete_Pages/Obsolete_Pages/Obsolete_Pages/預先定義的函數/eval_函數 +--- +<p> </p> +<div class="onlyinclude"> +<h4 id="eval_函數" name="eval_函數">eval 函數</h4> +<p><code>eval</code> 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︰</p> +<pre>eval(expr) +</pre> +<p>此處 <code>expr</code> 就是要被求值的字串。</p> +<p>如果字串表示成表達式，<code>eval</code> 就會對表達式求值。如果參數（<code>expr</code>）表示成一個以上的 JavaScript 語句，eval 就會對語句求值。<code>eval</code> 代碼的作用域等同於呼叫端代碼的作用域。不要用 <code>eval</code> 來對算術表達式求值，JavaScript 會自動的對算術表達式來求值。</p> +</div> +<p>{{ 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") }}</p> +<p>{{ 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" } ) }}</p> |