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How do I create a class instance from a string name in ruby?
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Very simple in Rails: use String#constantize
class_name = "MyClass"
instance = class_name.constantize.new
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int value under 10 convert to string two digit number
...I use this, for example, to clear the text on particular Label Controls on my form by name:
private void EmptyLabelArray()
{
var fmt = "Label_Row{0:00}_Col{0:00}";
for (var rowIndex = 0; rowIndex < 100; rowIndex++)
{
for (var colIndex = 0; colIndex < 100; colIndex++)
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In-place edits with sed on OS X
...and printing 'n' instead! Im just going to replace BSD sed with GNU sed on my mac!
– nterry
Mar 11 '16 at 23:40
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How to programmatically show next view in ViewPager?
...it calls OnPageChangeListener#onPageSelected, which really is a problem in my case :/ so I was hoping to find a way to keep the natural behavior but still programmtically move to another page.
– AgentKnopf
Dec 6 '14 at 9:54
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How to concatenate text from multiple rows into a single text string in SQL server?
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Wow, actually in my testing using data() and a replace is WAY more performant than not. Super weird.
– NReilingh
Feb 29 '16 at 18:33
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MySQL/SQL: Group by date only on a Datetime column
Having a table with a column like: mydate DATETIME ...
4 Answers
4
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What is the leading LINQ for JavaScript library? [closed]
... the available libraries lacks regarding performance. Being a c# developer myself, I would love to have c# syntax with a javascript oriented library but there is not any such available. All of the aforementioned libraries are "javascript wrappers' which means they try to implement LINQ functions the...
What's the difference between Unicode and UTF-8? [duplicate]
... @GregS: About all I can say is that fans of .NET would undoubtedly flag my honest opinion of the design of .NET as offensive (in fact, even though I toned it down a lot, that's already happened).
– Jerry Coffin
Oct 17 '10 at 4:06
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Immediate Child selector in LESS
...or div >p? The & combinator is the canonical way do it in LESS, not my feelings. Your explanation is rethorical. Some people write their CSS in a single line...
– Ricardo Tomasi
Nov 15 '11 at 22:03
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How do I create delegates in Objective-C?
...bViewDidStartLoad: method, you could create a class like this:
@interface MyClass<UIWebViewDelegate>
// ...
@end
@implementation MyClass
- (void)webViewDidStartLoad:(UIWebView *)webView {
// ...
}
@end
Then you could create an instance of MyClass and assign it as the web view's deleg...