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When should iteritems() be used instead of items()?
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dict.iteritems was removed because dict.items now does the thing dict.iteritems did in python 2.x and even improved it a bit by making it an itemview.
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Kotlin Ternary Conditional Operator
...portant here. In Java/C#/JavaScript, if forms a statement, meaning that it does not resolve to a value. More concretely, you can't assign it to a variable.
// Valid Kotlin, but invalid Java/C#/JavaScript
var v = if (a) b else c
If you're coming from a language where if is a statement, this might ...
How to send parameters from a notification-click to an activity?
...ndroid.fjol"));
}
mTabsController.setActiveTab(TabsController.TAB_DOWNLOADS);
}
Use this:
Bundle extras = getIntent().getExtras();
if(extras !=null) {
String value = extras.getString("keyName");
}
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SQL: How to properly check if a record exists
While reading some SQL Tuning-related documentation, I found this:
9 Answers
9
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How to set a default value for an existing column
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+1 for specifying a constraint name, so SQL Server doesn't create a random one.
– HardCode
Jul 22 '11 at 15:25
38
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Git - fatal: Unable to create '/path/my_project/.git/index.lock': File exists
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It doesn't happen automatically. You need to execute the command git push to push your changes to the web server. Details on how this works are here: gitready.com/beginner/2009/01/21/pushing-and-pulling.html
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Finding the max/min value in an array of primitives using Java
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Arrays.asList(a) doesn't work. You can't make a list of primitives (List<char> in this case). First you need to convert the primitive values to objects and that's why ArrayUtils.toObject is used.
– nessa.gp
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ruby 1.9: invalid byte sequence in UTF-8
...riting a crawler in Ruby (1.9) that consumes lots of HTML from a lot of random sites.
When trying to extract links, I decided to just use .scan(/href="(.*?)"/i) instead of nokogiri/hpricot (major speedup). The problem is that I now receive a lot of " invalid byte sequence in UTF-8 " errors.
Fr...
CKEditor automatically strips classes from div
...CKEditor's rules.
Read more about:
Content filtering in CKEditor – why do you need content filter.
Advanced Content Filter – in deep description of the filtering mechanism.
Allowed content rules – how to write allowed content rules.
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What's NSLocalizedString equivalent in Swift?
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This is the correct answer. Once Apple does update it for Swift, Xcode will be able to just auto-convert this API to its new Swift API and nothing else will break. Even in Xcode's Refractor menu currently (v 11.4.1) there is a Wrap in NSLocalizedString option whic...