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Ruby, !! operator (a/k/a the double-bang) [duplicate]
...ot nil. Most of the time this is great because it saves us typing explicit tests (like if !current_user.nil?, which is at least six characters longer). But sometimes it might be really confusing if you return an object when the method implies that it returns a boolean. Methods whose name ends with ?...
Converting BigDecimal to Integer
...enefit of giving you more control over the rounding process.
Spock Groovy Test
void 'test BigDecimal rounding'() {
given:
BigDecimal decimal = new BigDecimal(Integer.MAX_VALUE - 1.99)
BigDecimal hugeDecimal = new BigDecimal(Integer.MAX_VALUE + 1.99)
BigDecimal reallyHuge = new BigD...
App restarts rather than resumes
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This question is still relevant in 2016. Today a QA tester reported an app of mine restarting rather than resuming from the stock launcher in Android M.
In reality, the system was adding the launched activity to the current task-stack, but it appeared to the user as if a rest...
Why is setTimeout(fn, 0) sometimes useful?
...rgument will schedule the callback to be run asynchronously, after the shortest possible delay - which will be around 10ms when the tab has focus and the JavaScript thread of execution is not busy.
The OP's solution, therefore was to delay by about 10ms, the setting of the selected index. This gave...
Proper Repository Pattern Design in PHP?
...f a basic controller for viewing and editing Users.
All code must be fully testable and mockable.
The controller should have no idea where the data is stored (meaning it can be changed).
Example to show a SQL implementation (most common).
For maximum performance, controllers should only receive the ...
jQuery event for images loaded
...
tested it today. was up and running in 2 minutes.
– CodeToad
Dec 5 '12 at 6:46
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How do I make an HTTP request in Swift?
...tail, check the documentation for the NSURLConnectionDataDelegate protocol
Testing on an Xcode playground
If you want to try this code on a Xcode playground, add import PlaygroundSupport to your playground, as well as the following call:
PlaygroundPage.current.needsIndefiniteExecution = true
This w...
Best dynamic JavaScript/JQuery Grid [closed]
...ne did you pick? I header DataTable is also a good option. Which one is fastest? And which one supports grouping?
– Vivek Vardhan
Oct 7 '14 at 11:58
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How to pass arguments from command line to gradle
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Thanks for letting me know! Changing name to testngGroup fixed the problem. Found a list of predefined properties in table 13.1 at gradle.org/docs/current/userguide/writing_build_scripts.html.
– Lidia
Jul 31 '12 at 23:50
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How does the Amazon Recommendation feature work?
...t.
Items added to carts but abandoned.
Pricing experiments online (A/B testing, etc.) where they offer the same products at different prices and see the results
Packaging experiments (A/B testing, etc.) where they offer different products in different "bundles" or discount various pairings of ...