undefined variable 中文意思是什麼
undefined variable
解釋
未定義變量-
Explains the concept of undefined values, how to determine if a variable or property is undefined, and how to undefine variables and properties
解釋未定義值的概念、如何確定變量或屬性是否是未定義的,以及如何取消定義變量和屬性。 -
They hold only one piece of data : a string, a number, the undefined value, a reference to another variable
它只保存一段數據:一個字元串、一個數字、未定義的值以及對另一個變量的引用。 -
Prof. of comp. science : what is a kiss ? it seems to be an undefined variable
資工系教授:接吻嗎?似乎是個未定義的變數。 -
Instead of checking for a default compound value, you can also catch the access to an undefined variable
不用再檢查默認的復合值,您也可以捕獲對未定義變量的訪問。 -
A variable may be undefined
可能未定義變量。 -
Nullable types allow a variable to contain a value that is undefined
可空類型允許變量包含未定義的值。 -
This means that the value of a local constant is undefined until the constant declaration statement is reached and that a local variable is undefined until the variable is assigned to in the function
這就意味著在到達常數聲明語句前局部常數值是未定義的,在函數中分配變量前局部變量是未定義的。
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