The 5 Most Common Mistakes Web Developers Make

Are you a new developer? What are some of the most common mistakes new web developers make? What kind of mistakes do programmers make? In this video I discuss the top 5 common mistakes web developers make. Stay all the way to the end of the video for a surprise sixth mistake and a special offer!

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Links

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[ProgramWithErik]

I'll be running this contest winner by Wednesday of the week of 9/11 !

[Hucklbrry_]

At my last company we created a checklist of pre-launch items - all of the little things that weren't necessarily "development" but were still vitally important to the launch of a website. For example: generate the sitemap for google and bing, add Google Analytics code, install SSL certificate in production, setup backup/recovery plan for the website. We eventually had 20 "Don't forget to do this ..." type of small tasks and reminders.

[mirzasisic]

Minifying your html, css and js improves the page load time a bit, also downloading libraries instead of using cdns is recommended, at least from what I know.

[KaiKennedyx]

I honestly think not having a responsive site is one of the biggest mistakes you can make. It's cutting out a TON of site users as more and more traffic is mobile these days and that will only continue to rise.

Also site speed for ALL versions of your site are important. People have zero patience waiting for things to load and if they give up and move on before your site finishes loading, you've not only given up THAT user, but word of mouth is a very powerful thing, and you've just stopped that person from sharing the site with others!

[charlesmarks]

Erik, It is worth mentioning the upcoming changes that Google is making regarding Https. Overall, few folks are ready for this and the impact will affect any site that asks for user input

[johnnydriesen]

Thanks for this useful overview, Erik

[albertgalvez]

Design, you don't want to design a rock n roll theme for a doctor.

[davidbasil]

Useful video.
Hey Erik, I know minification is important but do you also concatenate js files and if you do which tools to you use?

[mariohernandez]

Also for user input, don't check for bad input, check for good input and negate it. There are so many different kinds of bad input that you would have to check for.... I saw someone program:

if ( input.matches ( THIS_REG_EX ) || input.matches( THAT_REG_EX ) || || .... ) {
throw new Exception();
}
So much better to write this:
if ( !input.matches( THIS_REG_EX ) ) {
throw new Exception();
}

[Ryhor_]

In my opinion, one the most important thing is dont stop and every time fo learn some-thing new =)

[thomasturner]

People miss decent SEO and don't optimise their code for their website to load quicker.

[brandonbahret]

I often see people failing to put thought into how they display ads. It's not too rare for me to go onto a site only to see an ad taking up way too much space, or in an awkward position.

[PlayRiteProductions]

Great video man! I think more websites need to focus on UX a little more. I've been on some big websites where it's hard to use, hard to read text, and hard to find what your looking for. These type of problems can often times cause me to not want to go back to that website.

[sagarpandya]

I'm a superfan:) My suggestion: Writing no or poor documentation for their code.

[cenwesi]

They also need to know a framework and how to minify CSS/HTML

[CodingCommanders]

I think web developers are too obsessed with frameworks and in doing so miss out on client's needs. There is no one size fits all solution. If you try to solve every problem with the same framework (or whatever you think is the cool one of the week), even if it isn't meant to do what your client needs or wants, you will miss. Also too many dependencies. In 10 years from now are all those links in that Angular 1 project going to be valid? Who is going to remember Angular 1 to fix the code?

[exdoe]

incomplete sites, missing information(even lorum ipsum missing), broken hover classes

[teriyakov]

Putting too much inline styling is another one. Just like JavaScript snippets in the html. Doesn't scale well and its also not very maintainable.

[CheoWalker]

95% of the sites I work on is WordPress, so I know the struggle of site page load time.

[JamesJohnAgar]

I think full screen video/flash intro's are becoming problematic, another one is model pop-ups..