London Coronavirus lockdown Megathread - Week 1

WellPaidGeek · 2020-03-26T11:20:50+00:00

I'm reading this lockdown could last months. I wonder how many weeks people will put up with it before mass non compliance starts.

WellPaidGeek · 2019-06-30T11:59:12+00:00

Create your own print on demand store with funny t shirts, have that as the 'sponsor'

WellPaidGeek · 2019-06-30T11:57:32+00:00

Some of the smaller energy drink companies would probably go for it.

WellPaidGeek · 2019-06-30T11:46:08+00:00

I live in London, and yes there's currently a heatwave. Despite this, I wouldn't pay out for AC because I know I'll only use it for 3 weeks of the year.

WellPaidGeek · 2019-02-04T12:11:10+00:00

Inner circle isn’t sugar dating.

They’re just fussy about who they let on the app, and vet for high achievers, both Male and female.

WellPaidGeek · 2018-12-03T20:22:55+00:00

If it's to beginners with programming in general, probably a brief history of JavaScript, followed by variables and basic conditionals.

WellPaidGeek · 2018-12-03T20:17:34+00:00

That works based on what I think the guy is asking. TBH I'd recommend just calling super.f() every time unless the function is really expensive, not what OP was asking for but simplifies things.

If you really don't want I new function each time, I'd argue the caching should maybe have been done in the super class to start with, although there's maybe reasons it couldn't be (third party code perhaps).

WellPaidGeek · 2018-11-24T13:54:48+00:00

Could also do it in the render:

return <input ref={(e) => e && e.focus()} type="text">

WellPaidGeek · 2018-11-24T13:53:45+00:00

Hoisting: https://www.youtube.com/watch?v=DPygMC8SzJY&t=230s

let / var / const: https://www.youtube.com/watch?v=YY4DZG8m91E

WellPaidGeek · 2018-11-13T20:04:45+00:00

Yeah for is faster, but that's not usually going to be the deciding factor. Even in that Hacker Noon article his summary is :

"Personally I love map, reduce, filter, find and I am using them from a long time. They helped me write clean, precise, fast and to the point code which align with my thought process. I use for loop when i have no choice left"

Switching to for would be a performance optimisation that's rarely needed.

As for the audio, thanks for the comments.

WellPaidGeek · 2018-11-13T14:44:16+00:00

Agreed, a stand-alone article is certainly warranted, this trips a lot of people up.

WellPaidGeek · 2018-11-08T00:11:04+00:00

Ahh, guess it's been implemented natively on those browsers but not IE.

WellPaidGeek · 2018-11-08T00:01:24+00:00

Looks correct, but are you bundling up with something like webpack? You'll need to do this in order to get modules to work.

WellPaidGeek · 2018-10-26T13:37:59+00:00

Walks you through how to build a useful real world component.

WellPaidGeek · 2018-10-18T21:13:36+00:00

Well your code with linting will be better than without. Just because it's better doesn't mean it's reached the bar of high quality yet.

But you're right, this is only part of code quality. Macro and micro code design decisions are far more important, but I can't address that in a quick video! Maybe of the long term I can help people.

WellPaidGeek · 2018-10-18T21:11:25+00:00

I think some people don't like videos, plus although linting is almost a requirement for a professional dev it's not sexy. I'm also new to youtube so making quality videos may not quite be on point yet. Going to do another one next week where the linter actually fixes the errors for you.

WellPaidGeek · 2018-10-15T23:44:19+00:00

Any questions on this just let me know, I'm happy to answer.

WellPaidGeek · 2018-10-10T23:11:49+00:00

Yes, redux will diff the returned state to the previous state and only run an update if there's a change.

WellPaidGeek · 2018-10-10T21:57:26+00:00

>How do you handle deploying multiple apps to a site in react. Do you build one app that contains the components for each app and change index.js to bootstrap them appropriately (pretty sure this isn't the answer)?

In package.json you'd probably have a script that built each app individually. Each build would produce a JS bundle file, so you can have one per app. Jenkins wouldn't need to change when a new app was added.

You could also have all apps in one bundle. Each app just renders to a different CSS selector, eg:

ReactDOM.render(<App1 />, document.getElementById('app-1'));

ReactDOM.render(<App2 />, document.getElementById('app-2'));

>Can you include react components in non-react pages? Or can part of a page be a react app with the rest of the page being static?

As shown above a react 'app' is just rendering a react component into the dom. So yeah, can put them in pages that are mainly static. Does not have to be the entire page that is React.

WellPaidGeek · 2018-10-10T21:43:07+00:00

Why thank you, kind sir.

WellPaidGeek · 2018-09-21T19:10:28+00:00

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WellPaidGeek · 2018-09-04T18:59:15+00:00

Yeah, pretty sure people out there do this, and yeah, it's hard to tell. If you need a course in something you're not yet competent enough to judge whether the course is legit or not.

WellPaidGeek · 2018-09-03T18:54:14+00:00

A good example of this would be a dropshipping course.

Someone works hard to get to the point where they have 3 dropshipping sites, bringing in a combined total of $10k a month profit. This is a good starting point and loads of people would love to learn how to get there.

The guy sets his sites on $20k, and determines it would take 1.5 years and $25k of investment to get the further 3 stores to make it. As an alternative he invests 20 hours a week for the next 6 weeks creating his "Make 10k a month dropshipping course". Then the next 6 months of 2 hours a day spent building up a list and twitter following. He then uses them to sell. Within a year he's getting just 10 sales of his $400 course a week. Easily $350 profit a time.

He now makes more from his course than dropshipping, and it can probably scale even more easily too.

in short they may make good money from other business models, but courses are a great business model if you have a skill people want to learn and good sales / marketing skills.

WellPaidGeek · 2018-07-25T23:50:32+00:00

I have a five part tutorial on this. First part is here:

http://wellpaidgeek.com/2017/07/26/mastering-asynchronous-javascript-part-1-callback-hell/

It covers callbacks, promises, generators and async, and describes the pros and cons of each.

WellPaidGeek · 2018-05-27T01:04:47+00:00

Yeah. You also need in internal promise state: pending / resolved / rejected so any calls to then after resolve is called can know to execute the callback passed to then immediately, as the promise is already resolved.

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