If we consult the documentation on flake 8 we see: Anti-pattern Note: Despite being in the anti-pattern section, this will soon be considered the best practice. income = (gross_wages + taxable_interest) Best practice Note: Despite being in the best practice section, this will soon be considered an anti-pattern. income = (gross_wages + taxable_interest) So the … Read more
Hey this is currently an issue I opened in the flutter repo with dart 2.12. A simple workaround you could make in the meantime is just to cast the object. decoration: BoxDecoration( shape: BoxShape.circle, color: Colors.blueAccent, border: Border.all( color: Colors.blueAccent, width: 20.0, style: BorderStyle.solid), image: DecorationImage( fit: BoxFit.cover, image: myMarkerThumb != ‘noImage’ ? NetworkImage(myMarkerThumb) : … Read more
NaN‘s are unusual: they are not equal to anything, even themselves. You need to use isNaN(inbperr) to tell whether a value is a NaN or not.
What that is basically saying is that the else part of the if statement is unnecessary if there is a return in the if part. Something like this is what it expects: if (cctot <= 3 && cctot > 0) { alert(‘Credit under $3.00 not allowed’); return Number.MIN_SAFE_INTEGER; // important to return 0 so we … Read more
There is a performance improvement if there isn’t an else case in the “if”, since the bytecodes don’t pass execution into the “if” case. Here’s some functions and the output of dis.dis(foo) The following sample app: def foo(x): if x: pass else: return x+2 Disassembles to: 5 0 LOAD_FAST 0 (x) 3 POP_JUMP_IF_FALSE 9 6 … Read more
You can use length to see if your selector matched anything. if ($(‘#MyId’).length) { // do your stuff }
The theory (by theory I mean SQL Standard) says that WHERE restricts the result set before returning rows and HAVING restricts the result set after bringing all the rows. So WHERE is faster. On SQL Standard compliant DBMSs in this regard, only use HAVING where you cannot put the condition on a WHERE (like computed … Read more
You can use the Logical NOT ! operator: if (!$(this).parent().next().is(‘ul’)){ Or equivalently (see comments below): if (! ($(this).parent().next().is(‘ul’))){ For more information, see the Logical Operators section of the MDN docs.
Do we need to put constexpr after every if statement in if-else block in these kind of situations? Yes. The else-if block1 is a lie :), there are only if blocks1 and else blocks1. This is how your code is seen by the compiler: if constexpr (std::is_same_v<int, T>) return {a, 0.0}; else // { if … Read more
iter(x) will raise a TypeError if x cannot be iterated on — but that check “accepts” sets and dictionaries, though it “rejects” other non-sequences such as None and numbers. On the other hands, strings (which most applications want to consider “single items” rather than sequences) are in fact sequences (so, any test, unless specialcased for … Read more