porti | Node.js utility for system ports | Runtime Evironment library
kandi X-RAY | porti Summary
kandi X-RAY | porti Summary
Node.js utility for obtaining random TCP ports.
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QUESTION
I am using a node server with express to use Portis SDK. The project structure looks like this :
...ANSWER
Answered 2020-Nov-26 at 22:21Replace your import statements with
QUESTION
I have a multidimensional array and I would like to find an simple way to return the last occurrence of a key when "time_reported" is not NULL .
Example: for the array below the output should be the key n°2 cause it's the last array when a value is assigned.
...ANSWER
Answered 2019-Dec-10 at 00:04If the array is in order, you can just traverse it until $item["time_reported"]
is not null. This will get it done in O(N) in the worst case. If the array is not sorted, and you need the earliest / latest time, you will need to look at every element in the array for a best (and every) case of O(N).
QUESTION
I have a situation where I need two enums to hold one member of the same name. My code is in C++, Using IAR Embeddedj Workbench IDE. The code snippet is as follows:
...ANSWER
Answered 2019-Nov-05 at 14:39Is there any way to make it build while keeping name as it is?
Not without changes. If you wrap Port_e
and Pin_e
in a namespace or class you can resolve the name collision, but that would still alter the way the enums are used.
I also do not want to change the type to "enum class" as it will break the rest of my application code.
I strongly suggest you to do that anyway, and take the time to fix your application code. enum class
was designed exactly to solve this problem.
QUESTION
I'm working on a project that requires me to have the user insert some data on a modal view and then save it.
The whole process has to go through a validation process, for which if it finds any kind of errors it will highlight with the following CSS snippet the box.
...ANSWER
Answered 2019-Sep-12 at 12:43The required
attribute can cause browsers to validate the fields and put their own css on them. If you are using custom validation, then you may need to remove this attribute in order to stop the browser from also validating it
More information about html5 form validation
Alternately, you may be able to override the style using something like this:
QUESTION
I'm trying to model a natural convection case using Modelica.Media package and I've set up a simple grid of 6x6 fixed-volume zones (code attached) which implements mass and energy conservation. Those zones are connected to a no-flow boundary condition model and communicate through a flow model.
But when simulating it, I got a set of non-linear equations during all the steps, related to the calculation of the state p, h, Xi of each zone (figure attached).
Do you know I can set it up to avoid that? Maybe a different set of initial conditions? Any help is much appreciated!
...ANSWER
Answered 2019-Jul-25 at 10:46I've just found the problem, my set of equations was not complete and initialization was not helpful at all.
QUESTION
I'm using the NBA Draft dataframe, which can be obtained here and reading it with pandas.
When I try to load the csv to DataFrame the columns get sliced? with the following code:
...ANSWER
Answered 2018-Nov-19 at 21:42Do you want to see the whole dataframe in your screen? See if rounding suits your need
QUESTION
I excuse for asking a quite vague question, but, I have a pure native NDK application which is supposed to execute in Immersive Mode (i.e fullscreen).
The immersive mode JNI snippet is executed when the app is resumed via APP_CMD_RESUME
. This works most of the time, but, every now and then the command activity->vm->DetachCurrentThread()
in my SetImmersiveMode()
snippet crashes with a fatal exception:
ANSWER
Answered 2018-Sep-17 at 15:27View.setSystemUiVisibility() should be called from the main thread only. Without seeing your code, it's hard to tell if DetachCurrentThread() plays any role in this.
documentation, ANativeActivity::env is JNI context for the main thread of the app.
You should call DetachCurrentThread()
before terminating a native thread that you attached to JVM.
You should not call DetachCurrentThread)
on a thread born in Java, e.g. the UI thread.
Note that you may call AttachCurrentThread()
at any time and on any thread. It will be equivalent to NOP on a Java thread or on an attached thread.
These attach/detach are not paired like parentheses. Any number of attach calls is reversed by single detach. The recommended practice:
use
pthread_key_create
to define a destructor function that will be called before the thread exits, and callDetachCurrentThread
from there. (Use that key withpthread_setspecific
to store the JNIEnv in thread-local-storage; that way it'll be passed into your destructor as the argument.)
See how WebRTC handles attach/detach in their git Web repo.
QUESTION
Im trying to make a JSON object, which is basically a dictionary. This is my code which created a dictionary:
...ANSWER
Answered 2018-Sep-02 at 17:40While you haven't shown the code that creates it, I'm pretty sure the problem is that you're reusing the variable naamEnKwantiteitIngredienten
, which is the list you're using as the value pointed to by the 'ingredienten'
key in your dictionary. If that list gets modified in place (perhaps by filling it up with a different set of ingredients), you'll also see the modified version in your previous dictionary if you haven't dumped it to a JSON string yet.
There are I think a two main ways you could fix the problem.
One is to create the JSON immediately after you make the dictionary, rather than waiting to do it later. While this might resolve this issue, it might be inconvenient for your program (or impossible, if you need all the dictionaries to be defined at the same time for other reasons).
The other solution is to make sure that the dictionaries you create are independent of each other. Rather than reusing the same list in all of them, you should make sure that each one contains a separate list. The most obvious place to fix this may be wherever you create the value that ends up in naamEnKwantiteitIngredienten
, but you could instead fix it within the code you show by copying the list just before you put it in the dictionary:
QUESTION
I am currently trying to parse the contents of cells using VBA. Here is my code:
...ANSWER
Answered 2018-Feb-01 at 20:47try this:
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