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How can I select every other line with multiple cursors in Sublime Text?
...the selections, leaving just the cursors: ←
You now have a cursor at the start of every odd-numbered line. If you wanted even-numbered lines, press down: ↓
Depending on the file, there might be one cursor missing right down the bottom of the file. Using the mouse (damn!) scroll to the bottom, ho...
How do I shuffle an array in Swift?
...ing methods for that version.
Swift 4.2+
shuffle and shuffled are native starting Swift 4.2. Example usage:
let x = [1, 2, 3].shuffled()
// x == [2, 3, 1]
let fiveStrings = stride(from: 0, through: 100, by: 5).map(String.init).shuffled()
// fiveStrings == ["20", "45", "70", "30", ...]
var numbe...
A non well formed numeric value encountered
I have a form that passes two dates (start and finish) to a PHP script that will add those to a DB. I am having problems validating this. I keep getting the following errors
...
Using HTML5/Canvas/JavaScript to take in-browser screenshots
...egion");
let scr = q(".screen");
let send = q(".send");
let start=0;
let sx,sy,ex,ey=-1;
r.style.width=0;
r.style.height=0;
let drawBox= () => {
r.style.left = (ex > 0 ? sx : sx+ex ) +'px';
r.style.top = (ey > 0 ? sy : sy+ey) ...
How does the Windows Command Interpreter (CMD.EXE) parse scripts?
...(s) Only if the command block did not begin with @, and ECHO was ON at the start of the preceding step.
Phase 4) FOR %X variable expansion: Only if a FOR command is active and the commands after DO are being processed.
Phase 5) Delayed Expansion: Only if delayed expansion is enabled
Phase 5.3) Pi...
How would I run an async Task method synchronously?
....RunSynchronously
.Net 4.0
Use this:
var x = (IAsyncResult)task;
task.Start();
x.AsyncWaitHandle.WaitOne();
...or this:
task.Start();
task.Wait();
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How can I parse a YAML file from a Linux shell script?
...ug: yes
verbose: no
debugging:
detailed: no
header: "debugging started"
## output
output:
file: "yes"
Which, when parsed using:
parse_yaml sample.yml
will output:
global_debug="yes"
global_verbose="no"
global_debugging_detailed="no"
global_debugging_header="debugging started"
...
Detect home button press in android
... @Override
public void onHomeLongPressed() {
}
});
mHomeWatcher.startWatch();
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.util.Log;
public class HomeWatcher {
static ...
Difference between map and collect in Ruby?
...3, 4567 => 'third' }
a = 1..10
many = 500_000
Benchmark.bm do |b|
GC.start
b.report("hash keys collect") do
many.times do
h.keys.collect(&:to_s)
end
end
GC.start
b.report("hash keys map") do
many.times do
h.keys.map(&:to_s)
end
end
GC.start
...
Threading pool similar to the multiprocessing Pool?
... the same API.
import multiprocessing
def worker(lnk):
....
def start_process():
.....
....
if(PROCESS):
pool = multiprocessing.Pool(processes=POOL_SIZE, initializer=start_process)
else:
pool = multiprocessing.pool.ThreadPool(processes=POOL_SIZE,
...