The Top 1 Extension manager plugin in Chrome Webstore is Hijacking you

Hank X — Fri, 10 Mar 2023 13:58:29 +0000

_I'm not giving any link in this post because I don't want readers to visit the extension's page.
_

Extension Manager is a Google Chrome extension (id: gjldcdngmdknpinoemndlidpcabkggco )that is popular among Chinese users. This manager mainly helps users quickly turn on or off some extensions.

The Google Chrome online store shows that it has more than 100,000 users, and 809 users gave a score of 4.5 stars (out of 5).

However, since last year, this extension program has been found by users to have hijacking problems. When users visit shopping websites, they will be hijacked and redirected from rebate websites.

I checked the comments of this extension and found that some users pointed out that there was a hijacking problem, but the developer replied to other inquiries but directly skipped this question.

On the V2EX , different users have also discovered hijacking situations and explained the hijacking code in detail.

When users visit websites such as Taobao and JD.com, they will be captured by this extension and then jump to the rebate site controlled by the developer before going to the real site.

This means that this extension not only privately hijacks users without consent, but may also monitor the websites visited by users in order to jump when necessary.

If you have installed a browser extension called Extension Manager (id gjldcdngmdknpinoemndlidpcabkggco), it is recommended that delete it.

I found that this extension program has also been launched on Microsoft’s browser store. Therefore both Google Chrome and Microsoft browser users should delete it.

3 ways to turn String to Array in JavaScript, and the fastest one is...

Hank X — Wed, 08 Mar 2023 06:38:58 +0000

This probably an very easy question which you might only see it in intern or junior frontend job interview.

Given a `String`, turn it into an `Array` which each character as its item.

eg. Given 'Dev.to', out put ['D', 'e', 'v', '.', 't', 'o'].

Easy, right? The first method comes to your mind must be split.

split

function stringSplit(s){
  return s.split('')
}

And with the power of ES6, you might also know that Array.from can also do this job

Array.from

function arrayFrom(s){
  return  Array.from(s)
}

How about Object.values, of course it works

Object.values

function objectValues(s){
return Object.values(s)
}

Really a simple question, right? Let's see which one is the fastest way.

The simplest way to know how long a method take, it's print the time before and after the execute of the method. So here we get

function callWithTimer(func, s){
  let start = Date.now()
  func(s)
  let end = Date.now()
  let name = func.name
  let diff = end - start
  console.table({
    name,
    start,
    end,
    diff
  })
}

Also a simple function to generate a random string

function randomString(len){
return [...Array(len)].map(() => Math.random().toString(36)[2]).join('')
}

Let's see the simple result:

((len)=>{
  const str = randomString(len)
  callWithTimer(arrayFrom, str)
  callWithTimer(stringSplit, str)
  callWithTimer(objectValues, str)
})(10000000)

So the old trick is the best :D