Here's a thread of cool things I found exploring the #Firefox Developer Tools!
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In the Inspector, Ctrl+F jumps to the search box that allows you to find a tag or some content.
I was always annoyed that F3 doesn't go to the next result. Turns out that the shortcut for that is:
Enter!
@blinry Not very intuitive
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In the Inspector, Ctrl+F jumps to the search box that allows you to find a tag or some content.
I was always annoyed that F3 doesn't go to the next result. Turns out that the shortcut for that is:
Enter!
As you start modifying the CSS rules, and arrive at something you like, you can switch over to the "Changes" tab to find a summary of what you changed!
You can also copy all of that into your clipboard, and then integrate it into the original CSS that you're working on!
Until now, I always made changes in my source CSS files directly, and used some auto-refresh tool to preview it. But this workflow of modifying it directly, and copying out the required changes might be a bit smoother!
-
As you start modifying the CSS rules, and arrive at something you like, you can switch over to the "Changes" tab to find a summary of what you changed!
You can also copy all of that into your clipboard, and then integrate it into the original CSS that you're working on!
Until now, I always made changes in my source CSS files directly, and used some auto-refresh tool to preview it. But this workflow of modifying it directly, and copying out the required changes might be a bit smoother!
Next, I looked at the Console.
I learned that it has some predefined helper functions! You can use `$(selector)` as an abbreviation for `document.querySelector(selector)`.
Similarly, `$$(selector)` is short for `document.querySelectorAll(selector)`!
Even though this reeks of jQuery, I think these are fantastic in this context and I might use them *a lot*!
-
Next, I looked at the Console.
I learned that it has some predefined helper functions! You can use `$(selector)` as an abbreviation for `document.querySelector(selector)`.
Similarly, `$$(selector)` is short for `document.querySelectorAll(selector)`!
Even though this reeks of jQuery, I think these are fantastic in this context and I might use them *a lot*!
There are more "Console Helpers" in #firefox:
$_ is a shortcut to the result of the last expression you executed, allowing you to do some neat step-by-step exploration.
And $0 refers to the currently-inspected element on the page.
-
There are more "Console Helpers" in #firefox:
$_ is a shortcut to the result of the last expression you executed, allowing you to do some neat step-by-step exploration.
And $0 refers to the currently-inspected element on the page.
There's a couple more, like copy(), which copies its argument to your clipboard, or keys(), an abbreviation for Object.keys().
If you ever forget these console helpers, you can run :help to open the page of the documentation that explains them!
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There's a couple more, like copy(), which copies its argument to your clipboard, or keys(), an abbreviation for Object.keys().
If you ever forget these console helpers, you can run :help to open the page of the documentation that explains them!
There's a built-in multi-line editing mode! Press Ctrl+B to turn it on. Seems useful to write longer expressions.
This mode shares its history with the regular one-line mode.
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There's a built-in multi-line editing mode! Press Ctrl+B to turn it on. Seems useful to write longer expressions.
This mode shares its history with the regular one-line mode.
But also, I learned that the one-line mode tries to guess whether your command is incomplete when you press Enter, and then allows you to type a second line.
You can force a new line using Shift+Enter.
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But also, I learned that the one-line mode tries to guess whether your command is incomplete when you press Enter, and then allows you to type a second line.
You can force a new line using Shift+Enter.
That's all cool things I found in the Firefox DevTools today! Looking forward to check out the other tabs some other time.
It's kind of eye-opening for me how many convenient things a tool like that has. So far, when I opened the Toolbox, I usually quickly wanted to get something specific done, and didn't take the time to wander & explore…
What are your favorite built-in dev tools in Firefox? What did I miss in "Inspector" and "Console" today?
-
Next, I looked at the Console.
I learned that it has some predefined helper functions! You can use `$(selector)` as an abbreviation for `document.querySelector(selector)`.
Similarly, `$$(selector)` is short for `document.querySelectorAll(selector)`!
Even though this reeks of jQuery, I think these are fantastic in this context and I might use them *a lot*!
@blinry what is the difference between
$$(…)and$$$(…)? I didn't know about$$(…) -
That's all cool things I found in the Firefox DevTools today! Looking forward to check out the other tabs some other time.
It's kind of eye-opening for me how many convenient things a tool like that has. So far, when I opened the Toolbox, I usually quickly wanted to get something specific done, and didn't take the time to wander & explore…
What are your favorite built-in dev tools in Firefox? What did I miss in "Inspector" and "Console" today?
Ohh, the CSS pane helps you debug values of the "transform" property by showing you the box before and after the transformation!
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