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How to get names of enum entries?
...
The code you posted will work; it will print out all the members of the enum, including the values of the enum members. For example, the following code:
enum myEnum { bar, foo }
for (var enumMember in myEnum) {
console.log("enum member: ", enumMember);
}
Will print the...
Difference in make_shared and normal shared_ptr in C++
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The difference is that std::make_shared performs one heap-allocation, whereas calling the std::shared_ptr constructor performs two.
Where do the heap-allocations happen?
std::shared_ptr manages two entities:
the control block (stores meta data such as ref-counts, type-erased del...
What is the difference between Polymer elements and AngularJS directives?
...js is a library that contains several polyfills for various W3C APIs that fall under the Web Components umbrella. These are:
Custom Elements
HTML Imports
<template>
Shadow DOM
Pointer Events
others
The left-nav in the documentation (polymer-project.org) has a page for all of these "Platfor...
How to escape @ characters in Subversion managed file names?
... operations, appending the '@' symbol to the end of a file or URL argument allows you to target a specific revision of that file. For example, "svn info test.txt@1234" will give information about test.txt as it existed in revision 1234.
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Difference between \A \z and ^ $ in Ruby regular expressions
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@Ragmaanir is right, it should be with small letter \z instead of \Z!
– Petr
Aug 22 '12 at 10:35
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Really Cheap Command-Line Option Parsing in Ruby
...m afraid. When you look at the alternatives: [1] [2] [3], for what is basically just processing a simple string array (no really, let that sink in), you can't help but wonder WHY? What do you gain from all that bloat? This is not C, where strings are, "problematic". Of course to each his own. :)
...
New features in java 7
...switch(s) {
case "quux":
processQuux(s);
// fall-through
case "foo":
case "bar":
processFooOrBar(s);
break;
case "baz":
processBaz(s);
// fall-through
default:
processDefault(s);
break;
}
Binary literals
int binary = 0b1001_1001;
Improved Type Infere...
In Docker, what's the difference between a container and an image? [duplicate]
... running (or stopped) instances of some image.
Start with the base image called 'ubuntu'. Let's run bash interactively within the ubuntu image and create a file. We'll use the -i and -t flags to give us an interactive bash shell.
$ docker run -i -t ubuntu /bin/bash
root@48cff2e9be75:/# ls
bin bo...
Why can't overriding methods throw exceptions broader than the overridden method?
...tends A {
@Override
public void foo() throws SocketException {..} // allowed
@Override
public void foo() throws SQLException {..} // NOT allowed
}
SocketException extends IOException, but SQLException does not.
This is because of polymorphism:
A a = new B();
try {
a.foo();
} cat...
Return array in a function
...
In this case, your array variable arr can actually also be treated as a pointer to the beginning of your array's block in memory, by an implicit conversion. This syntax that you're using:
int fillarr(int arr[])
Is kind of just syntactic sugar. You could really repla...