SyntaxError: Block-scoped declarations in node.js webstorm

Question

我对 ES6 非常陌生，并且使用 webstorm ide.

在 node.js 中编写了示例 class 代码

'user strict';

class PersonClass {
    constructor(name) {
        this.name = name;
    }

    sayName() {
        console.log(this.name);
    }
}

let person = new PersonClass('My Name');
person.sayName();

当我运行代码显示错误时

class PersonClass {
^^^^^

SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode
    at exports.runInThisContext (vm.js:53:16)
    at Module._compile (module.js:373:25)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Function.Module.runMain (module.js:441:10)
    at startup (node.js:139:18)
    at node.js:974:3

虽然我安装了babel-cli，babel-presets-es2015。我该如何解决它。

Answer 1

你打错了，试着写 use strict 而不是 user strict

SyntaxError: Block-scoped declarations in node.js webstorm

SyntaxError: Block-scoped declarations in node.js webstorm

javascript

node.js

ecmascript-6

es6-class