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How to access array elements in a Django template?
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Remember that the dot notation in a Django template is used for four different notations in Python. In a template, foo.bar can mean any of:
foo[bar] # dictionary lookup
foo.bar # attribute lookup
foo.bar() # method call
foo[bar] # list-index lookup
It tries...
JavaScript arrays braces vs brackets
...1 and 3 have the same effect. Sometimes, however, they behave differently. For example, if var a = new Array(5) and var b = [5], then a ≠ b (since a.length = 5 while b.length = 1, a[0] is undefined while b[0] is 5, and so on.)
– Hunan Rostomyan
Feb 7 '15 at 2...
Image width/height as an attribute or in CSS? [duplicate]
... semantic value to the content, which is why the alt attribute is required for validation.
If the image is to be part of the layout or template, you should use a tag other than the img tag and assign the image as a CSS background to the element. In this case, the image has no semantic meaning and ...
BroadcastReceiver with multiple filters or multiple BroadcastReceivers?
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instead, you may provide two different intent filters:
filter for refresh only
IntentFilter filterRefresh = new IntentFilter(Params.INTENT_REFRESH);
filter for refresh and update
IntentFilter filterRefreshUpdate = new IntentFilter();
filterRefreshUpdate.addAction(Params.INTENT_REFRE...
Easiest way to detect Internet connection on iOS?
... on how to determine host reachability, reachability by WiFi, by WWAN etc. For a very simply check of network reachability, you can do something like this
Reachability *networkReachability = [Reachability reachabilityForInternetConnection];
NetworkStatus networkStatus = [networkReachability cur...
nuget 'packages' element is not declared warning
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You can always make simple xsd schema for 'packages.config' to get rid of this warning. To do this, create file named "packages.xsd":
<?xml version="1.0" encoding="utf-8" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qua...
How can I control the width of a label tag?
... @JoshStodola oh shiiiiit..... inline-block never used to work for me, i tried float and bham! i wonder why inline-block did't work for me
– Dheeraj
Aug 25 '15 at 11:35
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socket.emit() vs. socket.send()
.../socket.io/blob/master/lib/socket.js#L318). Maybe it's historical and just for backwards compatibility.
– Charles
Jul 20 '12 at 6:53
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Regular expression: find spaces (tabs/space) but not newlines
How can I have a regular expression that tests for spaces or tabs but not newlines. I tried \s but found out that it tests for newlines too.
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grepping using the “|” alternative operator
... argh, just realised I was following the wrong regex tutorial for use in grep. I can't seem to find a good grep one anywhere. Thanks for this!
– MattLBeck
Jul 21 '11 at 12:30
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