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C++ cout hex values?
...o control the exact formatting of the output number, such as leading zeros and upper/lower case.
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Ruby - test for array
...
Instead of testing for an Array, just convert whatever you get into a one-level Array, so your code only needs to handle the one case.
t = [*something] # or...
t = Array(something) # or...
def f *x
...
end
Ruby has various ways to harmonize an API whic...
How to deep watch an array in angularjs?
... or ANOTHER_ARRAY
}, true);
example
To handle this situation, I usually convert the multiple arrays I want to watch into JSON:
$scope.$watch(function() {
return angular.toJson([$scope.columns, $scope.ANOTHER_ARRAY, ... ]);
},
function() {
// some value in some array has changed
}
example...
Pass An Instantiated System.Type as a Type Parameter for a Generic Class
...generic method which does all of the work you want to do with the generic, and call that with reflection.
– Jon Skeet
Nov 5 '08 at 21:30
1
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How do I get the AM/PM value from a DateTime?
...k from 00 to 23.
if you add "tt" ->> The Am/Pm designator.
exemple converting from 23:12 to 11:12 Pm :
DateTime d = new DateTime(1, 1, 1, 23, 12, 0);
var res = d.ToString("hh:mm tt"); // this show 11:12 Pm
var res2 = d.ToString("HH:mm"); // this show 23:12
Console.WriteLine(res);
Co...
Pod install is staying on “Setting up CocoaPods Master repo”
... upgrade to version 1.0.0 just yet, you can perform the following steps to convert your clone of the Master spec-repo from a shallow to a full clone:
$ cd ~/.cocoapods/repos/master
$ git fetch --unshallow
My hack to first installation:
1. pod setup
2. Ctrl+C
After that I could find ~/.cocoapods/...
Overriding id on create in ActiveRecord
...; 8888
I'm not sure what the original motivation was, but I do this when converting ActiveHash models to ActiveRecord. ActiveHash allows you to use the same belongs_to semantics in ActiveRecord, but instead of having a migration and creating a table, and incurring the overhead of the database on ...
Java 理论与实践: 线程池与工作队列 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...文原文.
Doug Lea 的 Concurrent Programming in Java: Design Principles and Patterns, Second Edition是一本围绕有关 Java 应用程序中多线程编程的复杂问题的专著。
探索 Doug Lea 的 util.concurrent包，该包含有用于构建有效并发应用程序的大量有用的类...
Detecting an “invalid date” Date instance in JavaScript
...n Borgar's answer is unnecessary as isNaN() and isFinite() both implicitly convert to number.
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How do I update/upsert a document in Mongoose?
...t = new Contact({
phone: request.phone,
status: request.status
});
// Convert the Model instance to a simple object using Model's 'toObject' function
// to prevent weirdness like infinite looping...
var upsertData = contact.toObject();
// Delete the _id property, otherwise Mongo will return a ...