有图,react在类里用箭头函数定义后,编译报错,是babel配置问题吗?

Question

如下3张图,当npm run dev时,就会报语法错误,是babel配置的问题吗?主要是想定义函数时,不想用bind,所以换成箭头函数的方式,但总是报错.

Answer 1

package.json
"@babel/plugin-proposal-class-properties": "^7.0.0",

webapck

"plugins": ['@babel/plugin-proposal-class-properties']