Top "If-statement" questions

An "if" statement is a flow control structure in most programming languages that branches execution flow depending on a binary condition, generally evaluated at runtime.

The condition has length > 1 and only the first element will be used

I have a dataframe, trip: > head(trip.mutations) Ref.y Variant.y 1 T C 2 G C 3 A C 4 T …

r if-statement conditional calculated-columns
Are one-line 'if'/'for'-statements good Python style?

Every so often on here I see someone's code and what looks to be a 'one-liner', that being a one …

python for-loop if-statement idioms
How to use if statements in LESS

I'm looking for some kind of if-statement to control the background-color of different div elements. I have tried the below, …

css if-statement less
Excel formula to search if all cells in a range read "True", if not, then show "False"

Using an excel formula to search if all cells in a range read "True", if not, then show "False" For …

excel if-statement excel-formula contains
Can I use if (pointer) instead of if (pointer != NULL)?

Is it safe to check a pointer to not being NULL by writing simply if(pointer) or do I have …

c++ pointers if-statement null null-pointer
Oracle sql return true if exists question

How do I check if a particular element exists in a table - how can I return true or false? …

sql oracle if-statement exists
Check if file exists and continue else exit in Bash

I have a script that is one script in a chain of others that sends an email. At the start …

bash if-statement continue
Which "if" construct is faster - statement or ternary operator?

There are two types of if statements in java - classic: if {} else {} and shorthand: exp ? value1 : value2. Is one …

java performance if-statement shorthand premature-optimization
If Statement With Multiple Lines

I have an if statement with multiple conditions. I cannot see them all in a single window view. Is there …

vba if-statement line-breaks