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ExecutorService, how to wait for all tasks to finish
...swer back, or a reference to the underlying ComputeDTask, but I can't tell from your example.
If it isn't clear, note that invokeAll() will not return until all the tasks are completed. (i.e., all the Futures in your answers collection will report .isDone() if asked.) This avoids all the manual ...
AngularJS access scope from outside js function
...ed to use $scope.$apply() if you want to make any changes to a scope value from outside the control of angularjs like a jquery/javascript event handler.
function change() {
alert("a");
var scope = angular.element($("#outer")).scope();
scope.$apply(function(){
scope.msg = 'Superh...
How to shuffle a std::vector?
...
From C++11 onwards, you should prefer:
#include <algorithm>
#include <random>
auto rng = std::default_random_engine {};
std::shuffle(std::begin(cards_), std::end(cards_), rng);
Live example on Coliru
Make sur...
How do I merge a git tag onto a branch
...Remember before you merge you need to update the tag, it's quite different from branches (git pull origin tag_name won't update your local tags). Thus, you need the following command:
git fetch --tags origin
Then you can perform git merge tag_name to merge the tag onto a branch.
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How to retrieve POST query parameters?
...y-parser').json()) line is sufficient. And then you can read the json data from your request's body object, i.e. req.body, from within a route definition.
– Martin Carel
Nov 15 '14 at 21:58
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What is the difference between currying and partial application?
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Partial application transforms a function from n-ary to (x - n)-ary, currying from n-ary to n * 1-ary. A partially applied function has a reduced scope (of application), that is, Add7 is less expressive than Add. A curried function on the other hand is as expressive ...
When to use enumerateObjectsUsingBlock vs. for
... support to implement enumeration). Fast enumeration requires translation from an internal representation to the representation for fast enumeration. There is overhead therein. Block-based enumeration allows the collection class to enumerate contents as quickly as the fastest traversal of the nat...
dpi value of default “large”, “medium” and “small” text views android
...;/item>
</style>
TextAppearance.Large means style is inheriting from TextAppearance style, you have to trace it also if you want to see full definition of a style.
Link: http://developer.android.com/design/style/typography.html
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How do ports work with IPv6?
Conventional IPv4 dotted quad notation separates the address from the port with a colon, as in this example of a webserver on the loopback interface:
...
How do I pipe a subprocess call to a text file?
...object or a file descriptor. The first is the default, stdout is inherited from the parent (your script). The second allows you to pipe from one command/process to another. The third and fourth are what you want, to have the output written to a file.
You need to open a file with something like open...