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Check if a value exists in pandas dataframe index
...ta, 'value')
True
>>> '1' in getattr(df_data, 'value')
False
So fun :D
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Add new row to dataframe, at specific row-index, not appended?
...trix(seq(20),nrow=5,ncol=4))
r <- 3
newrow <- seq(4)
insertRow <- function(existingDF, newrow, r) {
existingDF[seq(r+1,nrow(existingDF)+1),] <- existingDF[seq(r,nrow(existingDF)),]
existingDF[r,] <- newrow
existingDF
}
> insertRow(existingDF, newrow, r)
V1 V2 V3 V4
1 1 6...
print call stack in C or C++
...
Boost stacktrace
Documented at: https://www.boost.org/doc/libs/1_66_0/doc/html/stacktrace/getting_started.html#stacktrace.getting_started.how_to_print_current_call_stack
This is the most convenient option I've seen so far, because it:
can actually print ...
Can JavaScript connect with MySQL?
...er-side, as with Node.js.
Node.js can access MySQL through something like https://github.com/sidorares/node-mysql2
You might also develop something using Socket.IO
Did you mean to ask whether a client-side JS app can access MySQL? I am not sure if such libraries exist, but they are possible.
EDI...
How to get URI from an asset File?
...etting the file path from that cache file.
@Throws(IOException::class)
fun getFileFromAssets(context: Context, fileName: String): File = File(context.cacheDir, fileName)
.also {
if (!it.exists()) {
it.outputStream().use { cache ->
...
I just discovered why all ASP.Net websites are slow, and I am trying to work out what to do about it
...James.
I also made modifications advised by Joel Mueller.
Code is here:
https://github.com/dermeister0/LockFreeSessionState
HashTable module:
Install-Package Heavysoft.LockFreeSessionState.HashTable
ScaleOut StateServer module:
Install-Package Heavysoft.LockFreeSessionState.Soss
Custom mod...
How do I escape ampersands in XML so they are rendered as entities in HTML?
...DATA tags:
<![CDATA[
This is some text with ampersands & other funny characters. >>
]]>
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Is there an easy way to strike through text in an app widget?
...
Here is an extension for all you Kotlin folks
fun TextView.showStrikeThrough(show: Boolean) {
paintFlags =
if (show) paintFlags or Paint.STRIKE_THRU_TEXT_FLAG
else paintFlags and Paint.STRIKE_THRU_TEXT_FLAG.inv()
}
Usage
textView.showStri...
How can I use goto in Javascript?
...his is more or less explicitly stated on the w3schools website here http://www.w3schools.com/js/js_switch.asp.
I find the documentation of the labeled continue and labeled break somewhat awkwardly expressed.
The difference between the labeled continue and labeled break is where they may be used. ...
How to add MVC5 to Visual Studio 2013?
...a if exist. After the setup windows may restart, and you are ready to have fun with your Web Developer Tools now.
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