Tutorial by Topics: condition

X?.Y; //null if X is null else X.Y X?.Y?.Z; //null if X is null or Y is null else X.Y.Z X?[index]; //null if X is null else X[index] X?.ValueMethod(); //null if X is null else the result of X.ValueMethod(); X?.VoidMethod(); //do nothing if X is null else call X.VoidMethod(); Note that w...

Conditional expressions, involving keywords such as if and else, provide JavaScript programs with the ability to perform different actions depending on a Boolean condition: true or false. This section covers the use of JavaScript conditionals, Boolean logic, and ternary statements. if (conditi...

Conditional expressions, involving keywords such as if, else if, and else, provide Swift programs with the ability to perform different actions depending on a Boolean condition: True or False. This section covers the use of Swift conditionals, Boolean logic, and ternary statements. For more in...

[[ -OP $filename ]] [[ $file1 -OP $file2 ]] [[ -z $string ]] [[ -n $string ]] [[ "$string1" == "$string2" ]] [[ "$string1" == $pattern ]] The [[ … ]] syntax surrounds bash built-in conditional expressions. Note that spaces are required on either side of th...

Conditional expressions, involving keywords such as if, elif, and else, provide Python programs with the ability to perform different actions depending on a boolean condition: True or False. This section covers the use of Python conditionals, boolean logic, and ternary statements. <expressi...

Note that the do...end syntax is syntactic sugar for regular keyword lists, so you can actually do this: unless false, do: IO.puts("Condition is false") # Outputs "Condition is false" # With an `else`: if false, do: IO.puts("Condition is true"), else: IO.puts(&q...

ParameterDetailspreda TensorFlow tensor of type boolfn1a callable function, with no argumentfn2a callable function, with no argumentname(optional) name for the operation pred cannot be just True or False, it needs to be a Tensor The function fn1 and fn2 should return the same number of outputs...

In contrast to Java's switch, the when statement has no fall-through behavior. This means, that if a branch is matched, the control flow returns after its execution and no break statement is required. If you want to combine the bahaviors for multiple arguments, you can write multiple arguments sep...

<element v-if="condition"></element> //v-if <element v-if="condition"></element><element v-else="condition"></element> //v-if | v-else <template v-if="condition">...</template> //templated v-if <element ...

Official docs explains playbook conditionals. http://docs.ansible.com/ansible/playbooks_conditionals.html Ansible (github) https://github.com/marxwang/ansible-learn-resources

if expression ... end if expression ... else ... end if expression ... elseif expression ... end if expression ... elseif expression ... else ... end ParameterDescriptionexpressionan expression that has logical meaning

if cond; body; end if cond; body; else; body; end if cond; body; elseif cond; body; else; end if cond; body; elseif cond; body; end cond ? iftrue : iffalse cond && iftrue cond || iffalse ifelse(cond, iftrue, iffalse) All conditional operators and functions involve using boole...

Important point to note while using condition The condition class is referred as direct class (not as spring bean) so it can't use the @Value property injection i.e. no other spring beans can be injected within it. From java docs - Conditions must follow the same restrictions as BeanFactoryPos...

Mixin with Guards .mixin-name(<arguments>) when <is-negation> (<ref-variable> <operator> <value>) CSS Guards <selector> when <is-negation> (<ref-variable> <operator> <value>) ParameterDetailsargumentsThe variables that are passed...

if(expression){} if(expression){}else{} if(expression){}elseif(expression){} if(expression){}elseif(expression){}else{} See also Comparison Operators, which can be used in conditional expressions.