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The pragmatic programmer
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Lucas Arantes
February 22, 2018
Programming
0
110
The pragmatic programmer
A more complete talk about what is and how to be pragmatic.
Lucas Arantes
February 22, 2018
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Transcript
The pragmatic programmer Lucas Oliveira | lucasprag.com
It's a book
None
None
What makes a pragmatic programmer? A pragmatic philosophy A pragmatic
approach
What makes a pragmatic programmer?
early adopter fast adapter
inquisitive
critical thinker
realistic
Jack of all trades
Jack of all trades != master of none
T-shaped skills
A pragmatic philosophy
"The greatest of all weaknesses is the fear of appearing
weak" - JB Bossuet
The cat ate my source code
Take responsibility
Provide options, don't make lame excuses
Everybody is learning
Don't live with broken windows
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Control your software entropy
None
it's time to bring out the stones
people find it easier to join an ongoing success
if something could be better, change it
be a catalyst for change
projects slowly get totally out of hand
remember the big picture
Good enough software
make quality a requirement issue
involve users in the trade-off
know when to stop
Your knowledge portfolio
"An investment in knowledge always pays the best interest" -
Benjamin Franklin
it's similar to managing a financial portfolio
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Building your portfolio
invest regularly
diversify
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manage risk
None
buy low, sell high
review and rebalance
Goals
- learn one new language every year - read technical
books - read nontechnical books too - read and write blog posts Goals
Goals - take classes - participate in local user groups
- stay current - get wired
Critically analyze what you read and hear
Communicate!
A large part of our day is spent communicating, so
we need to do it well.
know what you want to say
plan what you want to say
write an outline
ask yourself: Does this get across whatever I'm trying to
say?
refine it until it does
know your audience
understand the needs, interests and capabilities of your audience
None
get to the same frequency of your audience
choose your moment
choose a style
make it look good
be a listener
A pragmatic approach
By keeping these fundamental principles in mind during development, you
can write code that's better, faster, and stronger. You can even make it look easy
Every piece of knowledge must have a single, unambiguous, authoritative
representation within a system
DRY don't repeat yourself
- imposed duplication - inadvertent duplication - impatient duplication -
interdeveloper duplication How does duplication arise?
eliminate effects between unrelated things
Benefits
increase productivity
reduce risk
increase reversibility
every decision can be changed!
Coding DRY
keep your code decoupled
avoid global data
avoid similar functions
Single responsibility
must to be easy to test
Domain languages
"The limits of language are the limits of one's world"
- Ludwig Wittgenstein
computer languages influence HOW you think about a problem
program close to the problem domain
The Basic Tools
shell games
use the power of shell commands
grep
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awk
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None
xargs
None
None
power editing
one editor
use it very well
use it for all editing things
editor features
configurable
extensible
programmable
increase your cursor movement
automate
None
None
None
None
Debugging
fix the problem, not the blame
None
rubber ducking
None
"select" isn't broken
don't assume it, prove it
What makes a pragmatic programmer? A pragmatic philosophy A pragmatic
approach
You can learn a lot more
Thank you