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How do I convert a string to enum in TypeScript?
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Enums in TypeScript 0.9 are string+number based. You should not need type assertion for simple conversions:
enum Color{
Red, Green
}
// To String
var green: string = Color[Color.Green];
// To Enum / number
var color : Color = Color[green];
Try it online
I...
Haskell function composition (.) and function application ($) idioms: correct use
...ough, some might wonder if using infix operators instead of parentheses is based on some subconscious urge to avoid any possible resemblance to Lisp (just kidding... I think?).
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Apache Kafka vs Apache Storm
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Yes now Kafka includes Kafka Connect to talk to databases and other data sources (syslog, JMS, log files, etc), and Kafka Streams to do the stream processing (joins, Transforms, filters, aggregations), and back to Kafka Connect to write out to another database or repository.
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Detecting WPF Validation Errors
In WPF you can setup validation based on errors thrown in your Data Layer during Data Binding using the ExceptionValidationRule or DataErrorValidationRule .
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PHP filesize MB/KB conversion [duplicate]
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This is based on @adnan's great answer.
Changes:
added internal filesize() call
return early style
saving one concatentation on 1 byte
And you can still pull the filesize() call out of the function, in order to get a pure bytes...
Select elements by attribute
... an open source package then I (along with many users) would stop using it based on the grounds that it was poorly coded. If you didn't change it then someone else would eventually fork a version without the error and people would use that instead, and you'd lose your own project, as has happened ma...
Reading/parsing Excel (xls) files with Python
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You can use any of the libraries listed here (like Pyxlreader that is based on JExcelApi, or xlwt), plus COM automation to use Excel itself for the reading of the files, but for that you are introducing Office as a dependency of your software, which might not be always an option.
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See what has been installed via MacPorts
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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iPhone SDK: what is the difference between loadView and viewDidLoad?
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The easiest way to use loadView is to make some type of base view controller, like MyBaseViewController which is subclass of UIViewController. In it's loadView method create view in this way:
-(void) loadView {
if ([self viewFromNib]) {
self.view = [self viewFromNib];...
What does mvn install in maven exactly do
... the dependencies required.
On a mvn install, it frames a dependency tree based on the project configuration pom.xml on all the sub projects under the super pom.xml (the root POM) and downloads/compiles all the needed components in a directory called .m2 under the user's folder. These dependencies ...