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Call a function after previous function is complete
...do stuff
fulfill(result); //if the action succeeded
reject(error); //if the action did not succeed
});
}
This may seem like a significant overhead for this simple example, but for more complex code it is far better than using callbacks. You can easily chain multiple asynchrono...
How to urlencode a querystring in Python?
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Python 3:
urllib.parse.quote_plus(string, safe='', encoding=None, errors=None)
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Downloading an entire S3 bucket?
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CLI was giving me an error when i was trying to save my bucket, this worked perfectly!
– Lazar Kukolj
Dec 5 '16 at 3:32
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Traverse all the Nodes of a JSON Object Tree with JavaScript
... /*jshint validthis: true */ above func.apply(this,[i,o[i]]); to avoid the error W040: Possible strict violation. caused by the use of this
– Jasdeep Khalsa
Jul 3 '15 at 13:37
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if/else in a list comprehension
... because if my l = [ 2, 3, 4, 5] then [x if x % 2 == 0 for x in l] give me error whereas [x if x % 2 == 0 else 200 for x in l] works. Yes I know to filter it I should write [ x for x in l if x % 2 == 0]. Sorry for botheration. Thanks for your answer.
– Grijesh Chauhan
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Deleting queues in RabbitMQ
...se, calling queue.declare again with autodelete true will result in a soft error and the broker will close the channel.
You need to use queue.delete now in order to delete it.
See the API documentation for details:
Java Client queueDelete
.NET Client queueDelete
If you use another client, you...
How to convert string to boolean php
...ofcourse the lower one returns false. In fact, it throws a fatal :) "Fatal error: Only variables can be passed by reference". $a = 'False'; settype($a,'boolean'); var_dump($a); will indeed return false.
– Rob
Oct 24 '16 at 6:55
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html select option separator
... An empty optgroup like this is not legal html. You'll get validation errors if you use it. I prefer james.garriss's answer.
– Ariel
Sep 28 '11 at 11:58
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a href link for entire div in HTML/CSS
...to put a block level tag inside an inline tag, so that's the source of the error.
– Surreal Dreams
Dec 17 '10 at 5:18
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How to start an application using android ADB tools?
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What if I get an error: no activities found to run. aborting?
– IgorGanapolsky
Aug 4 '16 at 21:05
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