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How to understand nil vs. empty vs. blank in Ruby?

on August 29, 2023

understand nil vs. empty vs. blank in Ruby

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Rebase local branch onto remote master
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Replace character with newline in Vim
Replace master branch in Git from another branch
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Resize image while maintaining aspect ratio
RESTful programming explanation
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Ruby attr_accessor explanation
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Smart pointers in C++
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Sort dictionary by value in programming
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speed up Eclipse
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Split string on delimiter in Bash
Spring annotations difference
SQL JOIN types explanation
SQL JOIN vs INNER JOIN
SQL Server concatenate text from multiple rows
SQLite list tables in database
SSH run local script on remote machine
Stash only one changed file in Git
stash only one file out of multiple changed files in Git
Stash untracked file in Git
static function
static function in blade
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Store objects in HTML5 localStorage/sessionStorage
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StringBuilder vs StringBuffer performance comparison
Subtract a day from a date
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Text files ending with a newline
Text files ending with newline
The Rule of Three in C++
Three dots in React
Time delay in programming
Trait
Trim whitespace from Bash variable
Trim whitespace from string
Trim whitespace in Bash variable
Trim whitespace in programming
Trim whitespace in programming languages
Trim whitespace in string
truncate table
typedef enum in Objective-C
TypeScript vs. JavaScript
UITableView disable row highlight
Uncommit last commit in Git
undefined
understand nil vs. empty vs. blank in Ruby
undo git reset HEAD~
Undo uncommitted or unsaved changes in Git
unique Android device ID
Update copyright year automatically with PHP
Update database with CSVfile
update GUI from another thread
update or sync forked repository on GitHub
update query
Upgrade Python packages with pip
Use bcrypt for hashing passwords in PHP
use booleans in Python
use break and continue in Python loops
use built-in libraries in Python
use classes and objects in Python
use comments in Python
use dictionaries in Python
use exception handling in Python
use external libraries in Python
use file input and output in Python
use for loops in Python
use functions in Python
use getters and setters/accessors for private vars
use Git and Dropbox together
Use git pull --rebase
Use Git rebase instead of Git merge
use grep to show filenames on Linux
use if statements in Python
use lists in Python
use modules and packages in Python
use None in Python
use numbers in Python
use operators in Python
Use pointer instead of object
use Python for data science and machine learning
use Python for web development
use reflection to call a generic method
use regular expressions in Python
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use sets in Python
Use SSH to run local shell script on remote machine
use standard library in Python
use strings in Python
use sudo to redirect output to restricted location
use tuples in Python
use while loops in Python
using namespace std; considered bad practice
using namespace std; practice in C++
utf8_general_ci vs utf8_unicode_ci
validate program existence in script
Version of PostgreSQL running
Vertically align image in div
Vertically center text with CSS
view file history with content changes in Git
Vim case insensitive search
Vim duplicate line
Vim replace character with newline
Vim work with multiple files
virtualenv
virtualenvwrapper
visibility:hidden vs display:none
Visual Studio auto format methods and loops
Visual Studio auto format settings
Visual Studio breakpoint not hit warning
Visual Studio build options explanation
Visual Studio Code cursor position shortcut
Visual Studio Code duplicate line or selection
Visual Studio code sections collapse/expand
Visual Studio Code switch focus between editor and terminal shortcut
Webpage redirection in programming
What is event bubbling and capturing
What is functional reactive programming
What is RESTful programming
when to use static_cast dynamic_cast const_cast reinterpret_cast
work with dates and times in Python
Work with multiple files in Vim
World! in Python
write a comment in Python
write given code in two lines
write JSON data from dictionary to file in Python
Write JSON data to file
Write JSON to file in programming
write switch statement in Ruby
XML parsing to get node attribute
YouTube API thumbnail PHP cURL
YouTube API video thumbnail

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