參數: argument vs. parameter 有什麼不一樣？

[twy30]

https://github.com/EngTW/English-for-Programmers/issues/25#issuecomment-664709204

同樣的也讓我想到argument和parameter的關係

[FongX777]

之前有做過筆記：

Parameters: 參數 Arguments: 引數

A parameter is a variable in a method definition. When a method is called, the arguments are the data you pass into the method's parameters. Parameter is variable in the declaration of function. Argument is the actual value of this variable that gets passed to function.

Parameters are used to define a function. They are also called formal parameters and formal arguments.

function foo(param1, param2) {
    ...
}

param1 and param2 are parameters

Arguments are used to invoke a function. They are also called actual parameters and actual arguments. foo(3, 7) 3 and 7 are arguments:

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參考：function - "Parameter" vs "Argument" - Stack Overflow

[twy30]

補充一點資料 😊

• https://www.etymonline.com/word/parameter#etymonline_v_7180

late 1920s when it began to be extended to "measurable factor which helps to define a particular system,"

parameter 在 1920 年代晚期開始含有「用來定義一系統的『可測量因子』」

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• https://softwareengineering.stackexchange.com/questions/186293/why-are-actual-parameters-called-arguments

洋鄉民討論「為什麼引數要叫 "argument" ？」；有人從語源學的角度回答，大意是：

• 電腦科學家把數學觀念應用在程式上。
• argument 的語意是 "something from which another thing may be deduced" 「『可以由它推導出另一個觀念』的觀念」。

https://www.etymonline.com/word/argument#etymonline_v_26509 from arguere "make clear, make known, prove"

[twy30]

已整理至 https://github.com/EngTW/English-for-Programmers/blob/master/notes/2020-08-21-validate-verify.md

[twy30]

如果覺得還有問題、疑慮，歡迎再開新 issue 來討論 😊