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Show and hide a View with a slide up/down animation
... Notice that without .setVisibility(View.INVISIBLE); the slide up function won't work as visually expected.
– Advait S
Aug 3 '18 at 3:57
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How can I pass a member function where a free function is expected?
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There isn't anything wrong with using function pointers. However, pointers to non-static member functions are not like normal function pointers: member functions need to be called on an object which is passed as an implicit argument to the function. The signature...
How to properly assert that an exception gets raised in pytest?
How to make pytest print traceback, so I would see where in the whatever function an exception was raised?
11 Answers
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App Inventor 2 构建纯血鸿蒙 HarmonyOS App · App Inventor 2 中文网
... NEXT
填写应用名称和包名（Bundle ID/包名，格式建议：cn.fun123.你的项目名）
3.2 申请签名证书
HarmonyOS NEXT 有两类证书需要了解：
（1）调试证书（Debug证书）
用途：开发测试阶段使用
来...
Haskell composition (.) vs F#'s pipe forward operator (|>)
...rator, |> , is pretty common. However, in Haskell I've only ever seen function composition, (.) , being used. I understand that they are related , but is there a language reason that pipe-forward isn't used in Haskell or is it something else?
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TypeScript: Creating an empty typed container array
...ides would be negligible and readability is the most important factor.
*: Fun fact; at the time of writing the performance difference was 60% in Chrome, while in Firefox there was no measurable performance difference.
share...
Check if an element is a child of a parent
...r, as in target.parent('div#hello').
Example: http://jsfiddle.net/6BX9n/
function fun(evt) {
var target = $(evt.target);
if (target.parent('div#hello').length) {
alert('Your clicked element is having div#hello as parent');
}
}
Or if you want to check to see if there are a...
detach all packages while working in R
...()). However these typically are fraught with errors and could break basic functionality such as causing sessionInfo() to return only errors. This typically occurs because of a lack of reversibility in the original package's design. Currently timeDate can break irreversibly, for example.
(edit: 9/24...
Best practices for overriding isEqual: and hash
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The hash function should create a semi-unique value that is not likely to collide or match another object's hash value.
Here is the full hash function, which can be adapted to your classes instance variables. It uses NSUInteger's rath...
runOnUiThread in fragment
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Use a Kotlin extension function
fun Fragment?.runOnUiThread(action: () -> Unit) {
this ?: return
if (!isAdded) return // Fragment not attached to an Activity
activity?.runOnUiThread(action)
}
Then, in any Fragment you can just cal...