未捕获到的SyntaxError：意外令牌-

Question

I use

let op = data.map(({usp-custom-90})=> usp-custom-90 )

but that gives

Uncaught SyntaxError: Unexpected token -

I tried to replace dash with – but then I get errors in regards of &

How do I fix it?

Answer 1

You can use computed property name

let prop = `usp-custom-90`
let op = data.map(({[prop]:p})=> p)

Answer 2

标识符不能包含连字符，因此您必须将属性重命名为有效的标识符名称：

let op = data.map( ({ ['usp-custom-90']: uspCustom90 }) => uspCustom90 )