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python multithreading wait till all threads finished
...e concurrent.futures: https://docs.python.org/3/library/concurrent.futures.html
Using a ThreadPoolExecutor the code would be:
from concurrent.futures.thread import ThreadPoolExecutor
import time
def call_script(ordinal, arg):
print('Thread', ordinal, 'argument:', arg)
time.sleep(2)
pr...
How to set default values in Rails?
...
More info here: http://api.rubyonrails.org/classes/ActiveRecord/Migration.html
2. Use a callback
E.G. before_validation_on_create
More info here: http://api.rubyonrails.org/classes/ActiveRecord/Callbacks.html#M002147
sha...
When to use an assertion and when to use an exception
... doc http://docs.oracle.com/javase/6/docs/technotes/guides/language/assert.html#design-faq-general, "The assert statement is appropriate for nonpublic precondition, postcondition and class invariant checking. Public precondition checking should still be performed by checks inside methods that result...
How can I lookup a Java enum from its String value?
...ialization occurs from top to bottom: docs.oracle.com/javase/specs/jls/se7/html/jls-8.html#d5e12267
– Selena
Oct 15 '14 at 18:22
...
“Uncaught Error: [$injector:unpr]” with angular after deployment
...n () {
return {
restrict: 'AE',
templateUrl: 'calender.html',
controller: function ($scope) {
$scope.selectThisOption = function () {
// some code
};
}
};
});
When minified The '$scope' passed to the controller functio...
Iterating through a JSON object
...t('could not load page, check connection')
# read the response and DECODE
html=response.read().decode('utf8') # new python3 code
# now convert the decoded string into real JSON
loadedjson = json.loads(html)
# print to make sure it worked
print (loadedjson) # works like a charm
# iterate through ...
Textarea onchange detection
... 100) {
textArea.style.fontSize = '10pt';
}
})
})()
<html>
<textarea id='my_text_area' rows="4" cols="50" style="font-size:40pt">
This text will change font after 100.
</textarea>
</html>
...
What is the cleanest way to ssh and run multiple commands in Bash?
...hinking that myself -- here's one place to read about it: tldp.org/LDP/abs/html/here-docs.html
– bosmacs
Dec 10 '10 at 19:07
...
Is it possible in Java to catch two exceptions in the same catch block? [duplicate]
...ference:
http://docs.oracle.com/javase/tutorial/essential/exceptions/catch.html
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How to change a span to look like a pre with CSS?
...ooking at is:
white-space: pre
http://www.quirksmode.org/css/whitespace.html
http://www.w3.org/TR/CSS21/text.html#white-space-prop
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