Parsing error: Unexpected character ​Default

Tell us about your environment

• ESLint Version: 5.15.3
• Node Version: 8.11.3
• npm Version: 6.5.0

What parser (default, Babel-ESLint, etc.) are you using? babel-eslint Please show your full configuration:

Configuration

{
    "env": {
        "browser": true,
        "commonjs": true,
        "es6": true
    },
    "extends": ["eslint:recommended", "plugin:vue/recommended", "plugin:vue/strongly-recommended", "plugin:vue/essential"],
    
    "parserOptions": {
        "parser": "babel-eslint",
        "ecmaVersion": 2018,
        "sourceType": "module"
    },
    "plugins": [
        "vue"
    ],
    "rules": {
        "indent": [
            0,
            2,
            { "SwitchCase": 1 }
        ],
        "no-extra-semi": "warn",
        "no-unused-vars": "warn",
        "no-trailing-spaces": 0,
        "no-case-declarations": "warn",
        "no-unreachable": "warn",
        "no-multiple-empty-lines": 0,
        "prefer-const": 0,
        "space-infix-ops": "warn",
        "camelcase": 0,
        "no-console": 0,
        "linebreak-style": 0,
        "quotes": 0,
        "semi": 0,

        "vue/require-prop-types": 0,
        "vue/no-reserved-keys": 0,
        "vue/order-in-components": 0,
        "vue/require-default-prop": 0,
        "vue/return-in-computed-property": 0

    }
}

What did you do? Please include the actual source code causing the issue, as well as the command that you used to run ESLint.

function SimpleEvent(){
  this._isPreventDefault = false;
}

SimpleEvent.prototype.prevent​Default = function(){

}

[aladdin-add]

thanks for the demo. the code includes a \u200b(zero width space) somehow:

it is invisible, so the reported message is really misleading. you can file an issue in acorn repo to improve the message. I would recommended to say something like unexpected '\u200b'.

[hezedu]

You are right. np