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Coding Cheling
Front-end Web Development Blog by Cheling Liao
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Notes To Self
Cheling Liao
in
Coding Cheling
May 20, 2019
[JavaScript]變數與資料型別
宣告變數 let、const、var 的關聯
let
用來宣告可重新分配變量
const
用來宣告不變的常量,就是不可以再做修改的變數(常數)
var
ES6以前版本使用
let
與
var
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