How to fix jshint error Expected '(' before '('. (expected_a_before_b)

Question

Here is javascript code

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch()
  const page = await browser.newPage()
  await page.goto('https://www.google.com/')
  const title = await page.title()
  console.log(title)
  await browser.close()
})()

my settings.json inside .vscode folder

{
    "jshint.options": {
      "esversion": 8
    }
  }

I am using JSLint and my editor is visual studio code 1.47.2

Here is the error I am getting

Expected '(' before '('. (expected_a_before_b) jslint(expected_a_before_b) [3,8]

What could be the cause of this jshint error?

Answer 1

Looks like it's because JSLint doesn't support async/await.

Here's an issue that was raised, and a patch submitted to fix it, but it hasn't been merged and the bug, strangely, was closed when the bug's author decided, "I don't care anymore" -- strange b/c Evgeny is usually pretty active and helpful on the JSLint mailing list.

I think your options are to try that patch, not use async/await, or, unfortunately, at least for the time being, change linters. You could also file a new issue at JSLint that essentially repeats the earlier one that was closed without a resolution.