LHS RHS

RHS

字面上来说RightHand Side,不是真的右手的意思...简单来说当作get of value取回他的值会比较清楚了解,
自己是习惯把RHS称作 reference会更加直觉。

let a = "Hello world"console.log(a) //Hello world

LHS

LeftHand Side,习惯把它当作Assigning a value to varible,会比较了解

let a = "Hello world"console.log(a) //Hello world