...ore convenient to have the upper bits zeroed, so you can use a value as an array index (because all regs have to be the same size in an effective address: [rsi + edx] isn't allowed). Of course avoiding false dependencies / partial-register stalls (the other answer) is another major reason. ...

...ng (but in most cases it should return a boolean!). For example with NumPy arrays the

...especially searching for binary data structures that tell the length of an array. (concerning text buffers it seems null termination is the norm for telling the number of rows) – user2284570 Oct 8 '15 at 16:45 ...

...nction suitable for passing to std::async. For example, you might have an array of several promises and associated futures and have a single thread which does several calculations and sets a result on each promise. async would only allow you to return a single result, to return several you would ne...

...no run-time checks for common errors such as null-pointer dereferencing or array bounds overflow. Strictly speaking, most dynamically-typed languages — such as Perl, Python, PHP and Ruby — are also managed code. However, they are not commonly described as such, which shows that managed code is ...

...'string'.charAt(0) or 'string'.split('')[0] noting that accessing items in arrays is significantly faster than using charAt with strings in IE (though there's some initial overhead when split is first called.) Commas before the end of objects: e.g. {'foo': 'bar',} aren't allowed in IE. Element-s...

...lled, because it can return and the function could theoretically assign an array of food items from anywhere. We need to make sure that it is called; share | improve this answer | ...

...good when you always need the same initial value (like in your example, an array of given size, or integer of specific value), but it can work in your favour or against you: If you have many constructors that initialise variables differently (i.e. with different values), then initialisers are usele...

... @NeilN Python's array.sort(key=f) is stable, which means (for example) that simply sorting an alphabetical word list by length would keep all the 8-letter words alphabetically sorted. – Lynn Apr 12 '19 ...

...ading the constructor one: Does the standard mandate that each item in the array be constructed in sequence? It would matter if the constructor had side effects. I'm sure every sane compiler implements it as a 0->1000 loop but I wonder if you could still be compliant and loop backwards... ...