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How can I call controller/view helper methods from the console in Ruby on Rails?
... helpers, use the helper object:
$ ./script/console
>> helper.number_to_currency('123.45')
=> "R$ 123,45"
If you want to use a helper that's not included by default (say, because you removed helper :all from ApplicationController), just include the helper.
>> include BogusHelper
&...
How to write a Unit Test?
...can do your assertions like below:
Assertions.assertTrue(f.flipEquiv(node1_1, node2_1));
These are the imports that I added:
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
This is the test that I wrote:
You can check your methods like below:
Assertions.assertE...
Named colors in matplotlib
...s plt
from matplotlib import colors as mcolors
colors = dict(mcolors.BASE_COLORS, **mcolors.CSS4_COLORS)
# Sort colors by hue, saturation, value and name.
by_hsv = sorted((tuple(mcolors.rgb_to_hsv(mcolors.to_rgba(color)[:3])), name)
for name, color in colors.items())
sorted_names ...
Collection was modified; enumeration operation may not execute
...
Is that a complete example? I have a class (_dictionary obj below) that contains a generic Dictionary<string,int> named MarkerFrequencies, but doing this didn't instantly solve the crash: lock (_dictionary.MarkerFrequencies) { foreach (KeyValuePair<string, int...
Make a link in the Android browser start up my app?
...
For reference, adding CATEGORY_BROWSABLE means that "The target activity can be safely invoked by the browser to display data referenced by a link — for example, an image or an e-mail message."
– greg7gkb
Jul 9 '12...
Waiting until two async blocks are executed before starting another block
...y Programming Guide
Your example could look something like this:
dispatch_group_t group = dispatch_group_create();
dispatch_group_async(group,dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^ {
// block1
NSLog(@"Block1");
[NSThread sleepForTimeInterval:5.0];
NSLog(@"Bl...
Is there a HTML opposite to ?
...ipt" charset="utf-8">
$(document).ready(function() {
$.get('_test.html', function(html) {
$('p:first').after(html);
});
});
</script>
</head>
<body>
<p>This is content at the top of the page.</p>
<p>This is content at th...
How to record webcam and audio using webRTC and a server-based Peer connection
...mediaOptions.audio;
navigator.mediaDevices.getUserMedia(media.gUM).then(_stream => {
stream = _stream;
id('gUMArea').style.display = 'none';
id('btns').style.display = 'inherit';
start.removeAttribute('disabled');
recorder = new MediaRecorder(stream);
recorder.ond...
Why hasn't functional programming taken over yet?
... answered May 14 '10 at 16:34
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Export and Import all MySQL databases at one time
...zgür from the mysqldump man page: "mysqldump does not dump the INFORMATION_SCHEMA or performance_schema database by default. To dump either of these, name it explicitly on the command line and also use the --skip-lock-tables option."
– mmalone
Sep 23 '15 at 23...