Documentation improvement: clarify function assignment behavior

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Issue 類型
文件
描述清晰度
基本清楚
活躍度
冷清
技術堆疊
javascript
領域
documentation

研究方向

開啟 https://javascript.info/function-expressions 中的 Function expressions 區段，找到「Function is a Value」主題及其指派範例。檢查「copy a function」周圍的措辭，並釐清指派的是對同一個函式物件的參照，同時維持範例的行為不變。當說明對學習者來說明確無歧義，且範例仍然正確時，即視為完成。

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描述

I was reading the Function expressions section and noticed a wording choice that confused me a little.

The section mentions that we can "copy a function to another variable". Maybe the intention is to show that functions are values in JavaScript, the wording initially made me think that a new function was being created.

issue in the section -> url -> https://javascript.info/function-expressions
topic is "Function is a Value"

the example code was ->
function sayHi() { // (1) create
alert( "Hello" );
}

let func = sayHi; // (2) copy

func(); // Hello // (3) run the copy (it works)!
sayHi(); // Hello // this still works too (why wouldn't it)

My understanding is that func receives a reference to the same function object rather than creating an independent copy of the function itself.
There maybe a chance that i have misunderstood it , the copy could mean the reference is copied and a little context about reference would help even if it is included in the previous section.

This is not a major issue, but I thought a small clarification might help readers who are learning about values and references.

Thank you so much for the documentation

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