從函數中更改變量名

Question

我想知道是否可以從函數參數中更改變量的名稱

例如，

function(name, content) { 
    var name = content; 
    alert(name); 
} 

Answer 1

不，這是不可能的。你可以到最近的是一個對象的屬性命名，如：

var something = { name: 'me' }; 
console.log('something', something); 

something.content = something.name; 
delete something.name; 
console.log('something', something); 

或作爲一個函數：

const rename = (something, oldPropertyName, newPropertyName) => { 
    something[newPropertyName] = something[oldPropertyName]; 
    delete something[oldPropertyName]; 
};