If condition in LINQ Where clause
var query = someList.Where(a => (someCondition)? a == “something” : true); so, if ‘someCondition’ is false, ‘Where’ will be skipped.
conditional-statements
raise statement on a conditional expression
If you absolutely want to raise in an expression, you could do def raiser(ex): raise ex return <value> if <bool> else raiser(<exception>) This “tries” to return the return value of raiser(), which would be None, if there was no unconditional raise in the function.
Conditional Styling and Binding
<td> <span *ngIf=”eachOutlet.dollarValue != 0″ [style.color]=”eachOutlet.dollarValue < 0 ? ‘red’ : null”> {{eachOutlet.dollarValue | number:’1.0-2′}} </span> </td> You can also create a directive that does the styling (except the number pipe) to make it easier to reuse over different elements. Plunker example
How to have multiple conditions for one if statement in python [duplicate]
I would use def example(arg1, arg2, arg3): if arg1 == 1 and arg2 == 2 and arg3 == 3: print(“Example Text”) The and operator is identical to the logic gate with the same name; it will return 1 if and only if all of the inputs are 1. You can also use or operator if … Read more
CMake IF(something OR something else)
if (NOT (${TARGET_PLATFORM} STREQUAL “test” OR ${TARGET_PLATFORM} STREQUAL “my_board”)) or more simply if (CONDITION1 OR CONDITION2)
when to use if vs elif in python
I’ll expand out my comment to an answer. In the case that all cases return, these are indeed equivalent. What becomes important in choosing between them is then what is more readable. Your latter example uses the elif structure to explicitly state that the cases are mutually exclusive, rather than relying on the fact they … Read more
why -3==~2 in C#
Because two’s complement bit-arithmetic makes it so Cribbed from the wikipedia page and expanded: Most Significant Bit 6 5 4 3 2 1 0 Value 0 0 0 0 0 0 1 1 3 0 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 1 1 0 0 0 … Read more
Why is this simple conditional expression not working? [duplicate]
You are using it wrong. Use it this way: a = 2 if i in [1, 3, 6] else 7 The general form is: var = val1 if cond else val2
TypeScript conditional return value type?
Typescript will not infer different return types based on type guards in the function. You can however define multiple function signatures for let the compiler know the links between input parameter types and result type: function ff(x: boolean): boolean; function ff(x: string): string; // Implementation signature, not publicly visible function ff(x: boolean | string): boolean … Read more
Do I need a last `else` clause in an `if…else if` statement? [duplicate]
The ending else is not mandatory as far as JavaScript is concerned. As for whether it is needed, it depends on what you want to achieve. The trailing else clause will execute when none of the specified conditions is true. If the conditions are collectively exhaustive, then an else clause is entirely superfluous, except possibly … Read more