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Vim for
 Front-end Developers Harry Roberts • @csswizardry

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Hey!

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I’m Harry… Consultant Performance Engineer Leeds, UK @csswizardry

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Clearing the Air

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Quitting Vim

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:q Just like ⌘+Q

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:wq Just like ⌘+S ⌘+Q

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:q! Force quit without saving

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Vim is ugly…

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…but that’s a solvable problem

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Getting to Know Your Ex

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The Ex Editor Ex is a ‘line editor’ Vim is a ‘screen editor’ Ex is sub-editor within Vim

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:wq :%s/FOO/BAR/g :v/FOO/d Save and quit Replace all
 instances of
 FOO with BAR Delete all lines
 that don’t contain FOO

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“ “ex was eventually given a full-screen visual interface, thereby becoming the vi text editor. “Although there is overlap between ex and vi functionality, some things can only be done with ex commands…” — csswz.it/2D5WLPp

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ed » em » ex » vi » Vim 1971 1975 1976 1976 1991

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Vim Has a Steep Learning Curve

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Productivity Time

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Natural Language
 Text Editing

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[cdyv=][iatf][w{"pt)sB] Verbs Motions Objects

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c i w
 h n o
 a s r
 n i d
 g d _
 e e _

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v a t
 i r a
 s o g
 u u s
 a n _
 l d _

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c i p
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 a s r
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Reformat Messy Code

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=it Reformat code inside tags

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Tabs vs. Spaces

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:retab

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vi}
 :retab Visualise in braces

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Change Case of Strings

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gU / gu Go uppercase Go lowercase

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gUt: Go uppercase ’til the :

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guiw Go lowercase in current word

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gUi} Go uppercase in braces

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Alphabetise CSS

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Alphabetic CSS 1.You’re wrong 2.Automate it with a commit hook etc. 3.Get your editor to do it for you Don’t do
 it manually

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vi{
 :sort Visualise code in current braces Sort it

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.foo { background: green; color: red; display: block; display: block; font-size: 12px; padding: 1em; } Whoa! We’ve got a duplicate

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vi{
 :sort u Visualise code in current braces Sort it, leaving only unique lines

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Maths

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Incrementing and Decrementing

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/ Increment number under cursor Decrement number under cursor

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16 Add 16 to the number under the cursor

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29 Subtract 29 from the number under the cursor

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The Dot Command

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The Expression Register

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=

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=(16*4+24)/16 Insert result of (16*4+24)/16 at current cursor position

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Moving Lines

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Move lines around without moving yourself

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:-3 t . Copy line (-3)… …(t)o current line (.)

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:m . -4 (m)ove current line… …(4) lines up

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:-4,-3 t . Copy lines -4 to -3… …to the
 current line (.)

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Commenting Out Lines

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:g/color/ normal I// Run a global command And on lines Containing ‘color’ Enter
 normal mode And insert // at
 the beginning
 of the line

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:g/color/ normal I// This pattern… …and this
 command… …can be pretty much whatever you want

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:g/^\/\// normal dd Find lines that
 start with a comment… …and
 Delete ’em

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:g/-moz-/ normal >> Find vendor-prefixed
 declarations… …and
 indent ’em

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:q

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$ vimtutor

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@vimgifs

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“ “How do you spot a
 Vim user at a meetup?”

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Thank You speakerdeck.com/csswizardry [email protected] @csswizardry harry.is/for-hire