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javascript: recursive anonymous function?
...Y (f => ([a, b, x]) =>
x === 0 ? a : f ([b, a + b, x - 1]))
// starting with 0 and 1, generate the 7th number in the sequence
console.log (fibonacci ([0, 1, 7]))
// 0 1 1 2 3 5 8 13
But this is bad because it's exposing internal state (counters a and b). It would be nice if we ...
Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
...he error message is fine Googlable. In case you have no clue, best is to restart from scratch and do not touch any IDE/project configuration defaults. In case you're using Eclipse, you can find instructions in How do I import the javax.servlet API in my Eclipse project?
Testing the servlet individu...
GridLayout and Row/Column Span Woe
...
Starting from API 21, the GridLayout now supports the weight like LinearLayout. For details please see the link below:
https://stackoverflow.com/a/31089200/1296944
...
How can I prevent SQL injection in PHP?
...he source again. It's the destination that matters. The moment a developer starts to separate the sheep from the goats (thinking whether some particular variable is "safe" or not) he/she takes his/her first step towards disaster. Not to mention that even the wording suggests bulk escaping at the ent...
In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
...own in Python. Dave Beazley's Curious Course on Coroutines is an excellent start. Read slides 24-33 for a quick primer.
Reading data from a generator using yield from
def reader():
"""A generator that fakes a read from a file, socket, etc."""
for i in range(4):
yield '<< %s' ...
Is “inline” without “static” or “extern” ever useful in C99?
...
Thanks, I'm starting to get the idea!
– Sven Marnach
Jun 10 '11 at 22:55
8
...
How do I initialize a TypeScript object with a JSON object
... type of the root object must be specified, so that the deserializer has a starting-point.
Again, a dead simple implementation of this approach would be:
function deserialize<T>(jsonObject: any, Constructor: { new (): T }): T {
if (!Constructor || !Constructor.prototype.__propertyTypes__...
Scala type programming resources
... well:
Higher order abstractions in scala
Static typing gives you a head start
Scala implicits type classes, here I come
Refactoring into scala type-classes
Using generalized type constraints
How scalas type system words for you
Choosing between abstract type members
(I've been doing some resear...
What GRANT USAGE ON SCHEMA exactly do?
...-----------
//----------- SKIP THIS PART UNTIL POSTGRES JDBC ADDS SCRAM - START ----------//
cd /etc/postgresql/$VERSION/main
sudo cp pg_hba.conf pg_hba.conf_bak
sudo -e pg_hba.conf
# change all `md5` with `scram-sha-256`
# save and exit
//------------ SKIP THIS PART UNTIL POSTGRES JDBC ADDS SCR...
How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
...f constraints to position our view. So here's a solution that solves that. Start with an invisible view whose job is solely to act as a host, and use constraints to position it. Inside that, put the real view as a subview. Use constraints to position the subview within the host view, but limit those...