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.

Check if Variable exists and === true

I want to check if: a field in the array isset the field === true Is it possible to check this …

php if-statement notice
Using multiple let-as within a if-statement in Swift

I'm unwrapping two values from a dictionary and before using them I have to cast them and test for the …

if-statement swift optional
How to avoid a lot of if else conditions

I have read a lot of topics about code refactoring and avoiding of if else statements. Actually, I have a …

java if-statement refactoring
Check for a value equals to in Ember Handlebar If block helper

How do we check for a value equality in ember.js's If-block helper? {{#if person=="John"}} How do we perform …

if-statement ember.js handlebars.js
Guards vs. if-then-else vs. cases in Haskell

I have three functions that find the nth element of a list: nthElement :: [a] -> Int -> Maybe …

haskell if-statement case
if pass and if continue in python

I saw someone posted the following answer to tell the difference between if x: pass and if x: continue. >&…

python if-statement continue
TypeError with ufunc bitwise_xor

In my program which traces out the path of a particle, I get the following error: Traceback (most recent call …

python if-statement numpy typeerror
Replace negative values by zero

We want to set all values in an array zero that are negative. I tried out a a lot of …

r if-statement for-loop conditional-statements rcpp
Leave a cell blank if condition is false

Other questions have touched on this and offered solutions that are not viable for a very large data set. I …

excel if-statement find replaceall
If vs. Switch Speed

Switch statements are typically faster than equivalent if-else-if statements (as e.g. descibed in this article) due to compiler optimizations. …

c# performance switch-statement if-statement