You can assign default parameter values inline when you first create the mixin: @mixin clearfix($width: ‘auto’) { @if $width == ‘auto’ { // if width is not passed, or empty do this } @else { display: inline-block; width: $width; } }
The compiler can build jump tables where applicable. For example, when you use the reflector to look at the code produced, you will see that for huge switches on strings, the compiler will actually generate code that uses a hash table to dispatch these. The hash table uses the strings as keys and delegates to … Read more
I would aim for readability: you have just 3 scenario, deal with them with 3 separate ifs: bool valid = false; if (bValue1 && bValue2 && bValue3 && bValue4) valid = true; //scenario 1 else if (bValue1 && bValue2 && bValue3 && !bValue4) valid = true; //scenario 2 else if (bValue1 && !bValue2 && !bValue3 … Read more
Go to Tools -> Options -> Text Editor -> C# -> Code Style -> Formatting-> New Lines Here there are a lot of options. Remove the check on all options here to never put the open bracket on a new line. EDIT The section New Line Options for expressions does not relate to placement of … Read more
PHP’s comparison operators deviate from the computer-scientific definitions in several ways: In order to constitute an equivalence relation == has to be reflexive, symmetric and transitive: PHP’s == operator is not reflexive, i.e. $a == $a is not always true: var_dump(NAN == NAN); // bool(false) Note: The fact that any comparison involving NAN is always … Read more
Do you mean this: if (newStr4.startsWith(“Mon”) || newStr4.startsWith(“Tues”) || …) Or you could use regular expression: if (newStr4.matches(“(Mon|Tues|Wed|Thurs|Fri).*”))
The zmbq solution is good, but cannot be used in all situations, such as inside a block of code like a FOR DO(…) loop. An alternative is to use an indicator variable. Initialize it to be undefined, and then define it only if any one of the OR conditions is true. Then use IF DEFINED … Read more
The code… options.get(something, doThisMostOfTheTime)() …looks like it ought to be faster, but it’s actually slower than the if … elif … else construct, because it has to call a function, which can be a significant performance overhead in a tight loop. Consider these examples… 1.py something = ‘something’ for i in xrange(1000000): if something == … Read more
At the very lowest level (in the hardware), yes, ifs are expensive. In order to understand why, you have to understand how pipelines work. The current instruction to be executed is stored in something typically called the instruction pointer (IP) or program counter (PC); these terms are synonymous, but different terms are used with different … Read more
Hereunder three syntax options for that kind of statement. From gitlab-ci documentation : Using shell variable deploy-dev: image: testimage environment: dev tags: – kubectl script: – if [ “$flag” == “true” ]; then MODULE=”demo1″; else MODULE=”demo2″; fi – kubectl apply -f ${MODULE} –record=true Using shell variable with yaml multiline block deploy-dev: image: testimage environment: dev … Read more