21+ Browser Dev Tools & Tips You Need To Know
ฝัง
- เผยแพร่เมื่อ 26 ก.ค. 2024
- The web browser is one of the most sophisticated tools on the planet. Today we look at 21 tricks, tips, and lesser-known features in Chrome Dev Tools that will make your life easier as a web developer. fireship.io
#webdev #chrome #tips
🔗 Resources
Chrome Dev Tools Docs developer.chrome.com/docs/dev...
Cool PWA Features Video • 7 Web Features You Did...
Brave brave.com/
Visbug Extension chrome.google.com/webstore/de...
📚 Chapters
00:00 1. Design Mode
01:04 2. Command Palette
01:20 3. Screenshots
01:29 4. Visual Coverage
02:10 5. Dollar Sign Shortcut
02:37 6. Live Expression
02:53 7. Snippets
03:07 8. Redeclare variables
03:22 9. Copy Elements
03:50 10. Force State
04:12 11. Animation Timeline
04:30 12. Rendering FPS
04:51 13. Grid & Flexbox Editor
05:20 14. VisBug
05:32 15. Responsive Devices
05:49 16. Sensors
06:00 17. Lighthouse
06:21 18. Network Waterfall
06:51 19. Server Timing API
07:13 20. Performance
08:14 21. Memory Profile
08:51 Be Brave
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How is it humanly possible to fit this ocean of knowledge into a 9-minute video? We must protect Jeff at all costs!
In Jeff we trust!
Download Brave and send Jeff some tips lol
Hail him
I have to watch at 0.75 speed!
So his name is Jeff
Thanks Jeff, I was just wondering how to trick my audience into thinking I made 12,000,000$ in two days!
Never once have you wasted my time ❤️
“To investigate why your code sucks in more detail” 😂😂😂
lol 😂😂
More like seeing why ur code sucks in HD😹
When things were at their very worst:
2 Suns, Cross in the sky, 2 comets will collide = don`t be afraid - repent, accept Lord`s Hand of Mercy.
Scientists will say it was a global illusion.
Beaware - Jesus will never walk in flesh again.
After WW3 - rise of the “ man of peace“ from the East = Antichrist - the most powerful, popular, charismatic and influential leader of all time. Many miracles will be attributed to him. He will imitate Jesus in every conceivable way.
Don`t trust „pope“ Francis = the False Prophet
- will seem to rise from the dead
- will unite all Christian Churches and all Religions as one.
One World Religion = the seat of the Antichrist.
Benedict XVI is the last true pope - will be accused of a crime of which he is totally innocent.
The Book of Truth
Ouch
This video is the "missing semester" for front end devs.
You don't have to call them out like that
Been programming for 7 years and just today I learned about design mode haha. Thanks!
I'm so glad I stumbled on this channel, I just finished my first programming internship and I had essentially 0 web development experience beforehand, your videos helped me out a lot!
Pro tip: you also can use the sensors (5:49) to test your string localization for dates and currencies in different regions
Here's a neat feature: in the networking tab, you can edit a request (say, to an API) and change its headers, contents, etc. and resend it. It's very handy if you just want to test minor changes :D
How? That's very neat
How?
How?
how?
How can you elaborate?
Click the select button in the Dev Tools, then hover over an element and see if the contrast is good.
Come here to say the same thing, except with the shortcut (ctrl + shift + c), which is also open up the inspector, so you don't have to beforehand.
Firefox has a builtin screenshot tool which is much easier to use right at the click of a button. Much easier to use than the Chromium one.
1:20
Dev Tip: If you're using an Array or an Object, don't use console.log(), use instead console.table(). Thank me later.
But why
@@NEWTR0N_MUSIC it's gonna log a table and it's easier to read it that way (:
@@MiguelReyesDeveloper ohk thanks 👍🏻
One thing i want to mention here:
Teaching something is not easy as looking from outside. It is hard to keep viewers, subscribers level. Sharing content for everyone( No matter beginner, intermediate. etc).
But you do amazing things.
Everyone can watch and joy from your videos. Lets up to 1 million. ⭐
Design mode?? That's fucking sick thanks Fireship
Yeah man that flipped me
Using the throttle feature on the networking tab on most major websites, help detect redirection pages in websites; This is mostly helpful when pen testing offline apps.
(On TH-cam) -> Open Dev Tools -> Switch Responsive Mode to iPad / Mobile -> Network Panel -> Reload to view the requests in Network Panel -> sort by Time -> click the "videoplayback" request and open in New tab -> Right Click video and download. Congrats, you downloaded a youtube video.
This doesn't work for me.
That’s really cool, but I’ll just use my favorite free video downloader app. lol
TH-cam-dl
Amazing work dude. Love the content. Keep it coming
Just grabed my popcorn
im here aswell lmao
So many brilliant tips! Thanks for taking the time to research what's available and making it easily accessible and consumable for us.
I decided to learn Angular recently and found your Angular videos, good content you've got there
New Angular content is overdue on this channel
@@Fireship attempting module federation with WP5 & angular 11. do you have any good pointers/materials for reference ?
👏 Jeff thanks for your amazing content - this is hours of tutorials (and $$$) condensed in 9 minutes! You are a rare diamond!
"If i'm illegally scraping a website"
lmao
Scraping is seriously underrated. I've built a lot of websites based on other peoples data
@@TheCameltotem because of you laws like this exist to protect people from you
@@jp46614 Its legal unless you abuse it ie bring down their site.
Every single one of these tips are valuable. You sir are a treasure to the dev community
Really helpful video ! Thanks for this Jeff !
Bro, you always push out the most condense yet informative content! Love your work man.
Things I learned for years squeezed in 9 minutes. Huge respect!
I've randomly stumbled across pretty much all these things while working, but having them all here in perfectly succinct and descriptive video is amazing.
I am a simple person, I see Fireship's video I click it.
Thanks a lot. Your tips helps a lot. 👌🏻
This is the video i was looking for thank you jeff!
Getting excited for a Fireship video every time 👋🏻
Awesome stuff 🔥
I have learnt a lot of new things that I have never worked with from your videos, like AWS, nginx, kubernetes, graphQL(and other dbs), typescript to name a few. One thing that I don't understand is how they work together. I would really love to see a video where you design a mock system using all of these (and possibly more) and explain each of their roles and why you chose it (kinda like your reverse-cloud migration video using raspberry pi).
Whenever I think of a software architecture I think of them as several layers that interact with each other. However, I am unable to assign which layer what belongs to by watching a stand alone tutorial about a single tool.
Btw, I am a college senior pursuing CS major and I love your content. Thanks for all the awesome contents.
Selecting an element in the elements panel and using the different "Break On" options can also be very helpful on figuring out how some things work!
The CSS transition also has a UI panel for the timing function (easing) which is almost impossible to code by hand if you're doing anything more than the simple stuff.
man, like how do you publish all of these awesome videos in such a short time, like how??? I'm a fan
What a video! So much information in 9 minutes!
thanks. Was great to find this
Thaaanks, this info is really useful :)
Thanks man, this video was mind-blowing
I liked how we can grab the current element and manipulate it. Thank you, it's simple and straight to the point
I gotta give the award for condensing content to you man. nice work
As new learner, your videos helps me a lot, so many times I see something that can ease one of my dev struggles that I didn't even know what to search for it's fix.
Damn bro the way you do videos is amazing just the first 15 seconds had me hooked
I look forward to every video and it doesn't disappoint me at all. Thank you.
Very educational. Love it.
Super useful high-density essential knowledge. Thank you!
The example you used in the very beginning, directly exposing those scammers made me lol😂😂
What a banger of a vid, thanks for the knowledge!
Amazing Informations 🤩😊 Thank you 👍
Very practical technique, thank you！
Freaking amazing video.
One of my fav tips: In the network tab, if you right click on one of the HTTP Requests and hover over "Copy", you can actually copy the request as a cURL commands. So if you go run that cURL command in a terminal, cURL will send the exact same HTTP Request that your browser did. Super nifty, and there are other "Copy as" options too, such as fetch, Node.js fetch, etc etc
Great tips man!
+rep For the Brave suggestion segment👏
Gosh, I've seen so many new awesome feature here, I feel motivated to work with web (again)
Great one!
Thank you very much. I did not know about some features.
My mind is blown!! Thank you for making this super detailed video!! Awesome job!!
Super helpful. Thanks a lot
That Design mode feature is so sickk!! Never knew about that one
Thank you for the tips!
Really helpful 🙌🏻
Awesome Vid!
Awesome video!
Your videos are really helpful 🔥
Really helpful video
My god, actually insanely useful and impressive - thank you so much! ❤
You guys are awesome...🥶 Give us more.
Thanks. This was recommended by me.
Great knowledge.
awesome work
I had an issue that I wouldn't have noticed if it wasn't for this video. Thanks Jeff!
This is great thanks
Another video let's go! May I know where you get your background music?
AudioJungle usually
@@Fireship thank you!
These are all some very useful tips that can save me a lot of time which i will never use bcs ill forget about them by the time i need them
100% true
Wow!!!. the usefulness of information in this video.
There's channels out there that you don't really want to subscribe, but this channel is another thing
Thank you!!!
Thanks man I learn something new everyday from your channel .
Low time videos with great content .
I got inspired by you to learn react from that 💯 second video .
To make source files changes persist through page refresh, use local overrides. It helped me a lot when I was dealing with an external (other team's) module connected to mine with a web socket. I needed to force some state and modify some function definitions in order to test my module's changes and see how they behaved over the socket. It was really helpful to make changes to their module on my own, instead of bothering the other team and asking them to deploy on the testing environments, just so I can experiment with my solutions. Really good stuff!
It becomes really slow when reload the page swithing to local overrides. Dnt know why
I am putting this one into bookmarks. Awesome video
Best web dev channel
No matter if you're a pro developer using devtools constantly or a noob learning and practicing what you just learned in this video, you just might get bored of hitting f12 or ctrl+shift+J constantly to open up devtools.
Right-click the icon of your chosen browser and open up properties. In the field called "target", which holds the path to the browser's launcher file, after the path in quotes add --auto-open-devtools-for-tabs.
It should now look something like this:
"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --auto-open-devtools-for-tabs
All instances of the browser need to be closed before this change takes action (check your taskbar running apps).
Voila, each new tab you open will be waiting for you with devtools open.
- Edge has a bunch of VS Code themes for the devtools
- If you keep pressing Cmd + Q (instead of Cmd + W) and end up closing your browser, you can enable "Warn before quitting" in settings
- You can add tabs to a group and minimize them all at once. Tab organization becomes much easier
Amazing content. I can't thank you enough.
No matter how skilled I am at a subject, I always learn something new from your videos.
🤯🤯 Omgah!!! So much knowledge!!! 🤩💪🙏
The Sources tab is also a full-fledged debugger.
We can put breakpoints, peek the current value of any variable by hovering, watch variables, etc.
This feature is helping me so much with my Angular application.
This video is pure gold
Awesome video
The application tab is very useful if you are making a PWA. The manifest section can show you detailed info about your manifest, including previews of your logo (How it will appear once your PWA is installed in mobile devices of different sizes).
The music and the video audio go so well.
Not sure how specific this is to the developer tooling in the browsers themselves, but the Quick Source Viewer extension and JSON Viewer in Chrome format raw source outputs as well as API responses which can be super handy!
Thank you kind sir.
Thanks very much for this informational video, I love that you add jokes with good information.
I really love the style in which you cover topics. The animations, storytelling, and flow are all awesome. Would you please make a video on Snowflake? It is quite a rage these days.
yoo these are crazy amazing tips
Thank you very much, now I can understand the magic of website builders.
My discovery of 2021 was "Emulate a focused page" in chrome devtools (you can get it from the [⌘]+[P] Command Menu, or Global Preferences). It's extremaly usefull when you try debugging an element that keeps disappearing when it loses focus once you start using devtools (in example dropdown list). Can't live without it since then
I like a lot how, after a few videos and deep diving into fireship's world, you simply start callim him Jeff, like you would call a friend that you know for a time now, thanks Jeff, you are awesome!
wow ..so much valuable information in this video, am amaze, you know so much man, you must be a guru. thanks man
I am so glad to have good senior developers in my team that I learned most of these things from. The other tips they probably don't even know lol