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When to favor ng-if vs. ng-show/ng-hide?
... those elements will be lost. For example, if you bound a click handler to one of child elements, when ng-if evaluates to false, that element will be removed from DOM and your click handler will not work any more, even after ng-if later evaluates to true and displays the element. You will need to re...
Android accelerometer accuracy (Inertial navigation)
...s looking into implementing an Inertial Navigation System for an Android phone, which I realise is hard given the accelerometer accuracy, and constant fluctuation of readings.
...
What is the formal difference in Scala between braces and parentheses, and when should they be used?
... expected but integer literal found. The author wanted to write 1 + 2 + 3.
One could argue it’s similar for multi-parameter methods with default arguments; it’s impossible to accidentally forget a comma to separate parameters when using parens.
Verbosity
An important often overlooked note about ...
Cmake vs make sample codes?
...txt ( cmake ) that both do the same thing (the only difference being that one is written in make and the other in cmake ).
...
What is the difference between “git init” and “git init --bare”?
...ates a repository with a working directory so you can actually work (git clone). After creating it you will see that the directory contains a .git folder where the history and all the git plumbing goes. You work at the level where the .git folder is.
Bare Git Repo
The other variant creates a repos...
Possible reason for NGINX 499 error codes
...-user double-clicks a form submit button. The form is sent twice, but only one response is expected by the client. This can be worked around by disabling (at least for a few seconds) buttons in JS the first time they get clicked.
– Antoine Pinsard
Jan 11 '17 at...
@RunWith(MockitoJUnitRunner.class) vs MockitoAnnotations.initMocks(this)
...usage is actually worth having. It gives you better reporting if you make one of these mistakes.
You call the static when method, but don't complete the stubbing with a matching thenReturn, thenThrow or then. (Error 1 in the code below)
You call verify on a mock, but forget to provide the metho...
Solutions for INSERT OR UPDATE on SQL Server
...ns provided by @Beau Crawford & @Esteban show general idea but error-prone.
To avoid deadlocks and PK violations you can use something like this:
begin tran
if exists (select * from table with (updlock,serializable) where key = @key)
begin
update table set ...
where key = @key
end
else...
Creating a textarea with auto-resize
There was another thread about this , which I've tried. But there is one problem: the textarea doesn't shrink if you delete the content. I can't find any way to shrink it to the correct size - the clientHeight value comes back as the full size of the textarea , not its contents.
...
Drop rows with all zeros in pandas data frame
... Just a note: OP wanted to drop rows with all columns having value 0, but one can infer all method.
– paulochf
Apr 25 '16 at 20:02
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