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Why fragments, and when to use fragments instead of activities?
...es. You can achieve some of the same things using activities and layouts (for example by using includes). However; fragments are wired in to the Android API, from HoneyComb, and up. Let me elaborate;
The ActionBar. If you want tabs up there to navigate your app, you quickly see that ActionBar.TabL...
Node package ( Grunt ) installed but not available
... grunt , but after running npm install I still can't run the command according to the readme file . It just gives No command 'grunt' found :
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Why is there no Constant feature in Java?
...have learned that Java allows us to declare constants by using final keyword.
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SQLite - increase value by a certain number
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Sample 1 (for all rows):
UPDATE Products SET Price = Price + 50
Sample 2 (for a specific row):
UPDATE Products SET Price = Price + 50 WHERE ProductID = 1
Sample 3 (generic):
UPDATE {Table} SET {Column} = {Column} + {Value} WHERE ...
Incomplete type is not allowed: stringstream
Why does this line give the error Error: incomplete type is not allowed ?
3 Answers
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How to set enum to null
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You can either use the "?" operator for a nullable type.
public Color? myColor = null;
Or use the standard practice for enums that cannot be null by having the FIRST value in the enum (aka 0) be the default value. For example in a case of color None.
pub...
Why use 'git rm' to remove a file instead of 'rm'?
...use git rm --cached which will remove the file from the index (staging it for deletion on the next commit), but keep your copy in the local file system.
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Embed SVG in SVG?
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Use the image element and reference your SVG file. For fun, save the following as recursion.svg:
<svg width="100%" height="100%" viewBox="-100 -100 200 200" version="1.1"
xmlns="http://www.w3.org/2000/svg">
<circle cx="-50" cy="-50" r="30" style="fill:red" />...
How to sort a dataframe by multiple column(s)
I want to sort a data.frame by multiple columns. For example, with the data.frame below I would like to sort by column z (descending) then by column b (ascending):
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AngularJS: Understanding design pattern
In the context of this post by Igor Minar, lead of AngularJS:
5 Answers
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