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Large-scale design in Haskell? [closed]
...rt discusses solutions to the problem of lifting monadic actions into your custom monad. George Wilson shows how to use mtl to write code that works with any monad that implements the required typeclasses, rather than your custom monad kind. Carlo Hamalainen has written some short, useful notes summ...
Create a devise user from Ruby console
...confirmation emails, the best choice is:
u = User.new({
email: 'demo@greenant.com.br',
password: '12feijaocomarroz',
password_confirmation: '12feijaocomarroz'
})
u.confirm
u.save
So if you're using a fake email or have no internet connection, that'll avoid error...
Aggregate / summarize multiple variables per group (e.g. sum, mean)
...ther columns to be aggregated and to aggregate by is very simple
also with custom-made aggregation functions
For example like so:
colsToAggregate <- c("x1")
aggregateBy <- c("year", "month")
dummyaggfun <- function(v, na.rm = TRUE) {
c(sum = sum(v, na.rm = na.rm), mean = mean(v, na.rm...
Merge 2 arrays of objects
...ers. YOU answer is good but it'll be easier and neater using underscore.js
DEMO: http://jsfiddle.net/guya/eAWKR/
Here is a more general function that will merge 2 arrays using a property of their objects. In this case the property is 'name'
var arr1 = [{name: "lang", value: "English"}, {name: "a...
Best Practices: Salting & peppering passwords?
...wn away backups, discarded servers… can lead to this situation. A lot of PHP users work on hosted servers.
– martinstoeckli
Jun 4 '13 at 20:14
2
...
Align inline-block DIVs to top of container element
..., why does the shorter of the two not align to the top of the container? ( DEMO ):
4 Answers
...
How to detect shake event with android?
...
You can also take a look on library Seismic
public class Demo extends Activity implements ShakeDetector.Listener {
@Override protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
SensorManager sensorManager = (SensorManager) getSystemSe...
handle textview link click in my android app
...
Another way, borrows a bit from Linkify but allows you to customize your handling.
Custom Span Class:
public class ClickSpan extends ClickableSpan {
private OnClickListener mListener;
public ClickSpan(OnClickListener listener) {
mListener = listener;
}
@...
Android list view inside a scroll view
...
You Create Custom ListView Which is non Scrollable
public class NonScrollListView extends ListView {
public NonScrollListView(Context context) {
super(context);
}
public NonScrollL...
Express: How to pass app-instance to routes from a different file?
...ire('./routes');
routes.forEach(route => app.get(...route));
// You can customize this according to your own needs, like adding post request
The final app.js:
// app.js
var express = require('express');
var app = express.createServer();
let db = ...; // your db object initialized
co...