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What's the best way to learn LISP? [closed]
...
Pick up The Land of Lisp by Conrad Barski. It is a fun filled introduction to Lisp programming using cartoons and games.
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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 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. ...
Android: ScrollView force to bottom
...rollLayout.smoothScrollBy(0, delta);
This works well.
Kotlin Extension
fun ScrollView.scrollToBottom() {
val lastChild = getChildAt(childCount - 1)
val bottom = lastChild.bottom + paddingBottom
val delta = bottom - (scrollY+ height)
smoothScrollBy(0, delta)
}
...
How to set tint for an image view programmatically in android?
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Better simplified extension function thanks to ADev
fun ImageView.setTint(@ColorRes colorRes: Int) {
ImageViewCompat.setImageTintList(this, ColorStateList.valueOf(ContextCompat.getColor(context, colorRes)))
}
Usage:-
imageView.setTint(R.color.ti...
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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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...
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...
Which timestamp type should I choose in a PostgreSQL database?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to handle both a single item and an array for the same property using JSON.net
...ndgrid.com
timestamp: 1337966815
event: open
categories: olduser
Fiddle: https://dotnetfiddle.net/lERrmu
EDIT
If you need to go the other way, i.e. serialize, while keeping the same format, you can implement the WriteJson() method of the converter as shown below. (Be sure to remove the CanWrit...