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Execute a terminal command from a Cocoa app
...log where it belongs
task.standardOutput = pipe;
An explanation is here: https://web.archive.org/web/20141121094204/https://cocoadev.com/HowToPipeCommandsWithNSTask
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Python Sets vs Lists
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Set wins due to near instant 'contains' checks: https://en.wikipedia.org/wiki/Hash_table
List implementation: usually an array, low level close to the metal good for iteration and random access by element index.
Set implementation: https://en.wikipedia.org/wiki/Hash_table,...
Programmatically retrieve memory usage on iPhone
...memory gauge in Xcode's Debug navigator.
The value returned is in bytes.
https://forums.developer.apple.com/thread/105088#357415
Original code follows.
func memoryFootprint() -> mach_vm_size_t? {
// The `TASK_VM_INFO_COUNT` and `TASK_VM_INFO_REV1_COUNT` macros are too
// complex f...
How do you rename a MongoDB database?
...
No there isn't. See https://jira.mongodb.org/browse/SERVER-701
Unfortunately, this is not an simple feature for us to implement due to the way that database metadata is stored in the original (default) storage engine. In MMAPv1 files, the na...
How to make a function wait until a callback has been called using node.js
...
check this:
https://github.com/luciotato/waitfor-ES6
your code with wait.for: (requires generators, --harmony flag)
function* (query) {
var r = yield wait.for( myApi.exec, 'SomeCommand');
return r;
}
...
Can I change the checkbox size using CSS?
... depends on font size. Keyboard actions (space, tabs) are also supported.
https://jsfiddle.net/ohf7nmzy/2/
body{
padding:0 20px;
}
.big{
font-size: 50px;
}
/* CSS below will force radio/checkbox size be same as font size */
label{
position: relative;
line-height: 1.4;
}
/* rad...
How to lose margin/padding in UITextView?
...t's still not fixed!
Finally, here's a somewhat similar tip for TextField: https://stackoverflow.com/a/43099816/294884
Completely random tip: how to add the "..." on the end
Often you are using a UITextView "like a UILabel". So you want it to truncate text using an ellipsis "..."
If so, add:
textC...
Maven dependency for Servlet 3.0 API?
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This seems to be added recently:
https://repo1.maven.org/maven2/javax/servlet/javax.servlet-api/3.0.1/
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version&...
What is a sensible way to layout a Go project [closed]
...d yourself an opinion, you can look at trending Go repositories on github: https://github.com/trending/go. Notable examples are cayley
and zeus.
The most popular scheme is probably to have a main Go file and many modules and submodules in their own directories. In case you have many meta files (doc...
Is Zookeeper a must for Kafka?
...s and what is the latest offset each group got from each partition.
[from https://www.quora.com/What-is-the-actual-role-of-ZooKeeper-in-Kafka/answer/Gwen-Shapira]
Regarding your scenario, only one broker instance and one producer with multiple consumer, u can use pusher to create a channel, and pu...