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Is a Java hashmap search really O(1)?
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You seem to mix up worst-case behaviour with average-case (expected) runtime. The former is indeed O(n) for hash tables in general (i.e. not using a perfect hashing) but this is rarely relevant in practice.
Any dependable hash table imp...
Why can a class not be defined as protected?
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@kelgwiin I believe you shouldn't mix access modifiers of classes and that of members. Because the two are different. While classes allow themselves to be modified as public or default, the members could be modified as public, private, protected and default.
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How to set a single, main title above all the subplots with Pyplot?
...imply adding figure.suptitle() is not enough since titles of subplots will mix with suptitile, fig.subplots_adjust(top=0.88) is good.
– GoingMyWay
Mar 22 '19 at 2:28
add a com...
How to erase the file contents of text file in Python?
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Not a complete answer more of an extension to ondra's answer
When using truncate() ( my preferred method ) make sure your cursor is at the required position.
When a new file is opened for reading - open('FILE_NAME','r') it's cursor is at 0 by default.
But if you ...
C# difference between == and Equals()
...emantics here because it truly separates value and reference equality. C# mixes the two together and it occasionally causes ambiguity errors.
– JaredPar
May 2 '09 at 14:04
10
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Thou shalt not inherit from std::vector
...especially, such common) aren't going to live in vacuum. They will live in mixed environment with constantly increased entropy.
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Xcode - ld: library not found for -lPods
I get these errors when I try to build an iOS application.
22 Answers
22
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How to use a keypress event in AngularJS?
...to add a directive, like this:
Javascript:
app.directive('myEnter', function () {
return function (scope, element, attrs) {
element.bind("keydown keypress", function (event) {
if(event.which === 13) {
scope.$apply(function (){
scope.$eval...
What's the difference between lists and tuples?
... list?, I always shiver when ppl use lack of fantasy as an argument. Using mixed type lists works great e.g. for some hierarchical data structures, where each list is composed of child-lists and value-elements.
– Sebastian Mach
Dec 4 '14 at 9:15
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Reset keys of array elements in php?
...for this. See http://php.net/manual/en/function.reset.php
Simply do this: mixed reset ( array &$array )
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