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Ruby arrays: %w vs %W
...es and escapes characters like #. '#{foo}' and "\#{foo}" give you the same string, which you can verify with '#{foo}' == "\#{foo}" in irb.
– Brian Campbell
Dec 4 '16 at 5:37
...
json_encode/json_decode - returns stdClass instead of Array in PHP
...lue "things" and has a property "things" with it's value being an array of strings ([] = array).
JSON (as JavaScript) doesn't know associative arrays only indexed arrays. So when JSON encoding a PHP associative array, this will result in a JSON string containing this array as an "object".
Now we're ...
Why do most fields (class members) in Android tutorial start with `m`?
... Use m prefix for non-public and non-static fields.
When to Use?
private String mCityName;
private float mTemperature;
When not to Use?
public static int mFirstNumber;
public static final String mDATABASE_NAME;
What I do?
Personally, I don't use it. It makes the code more complicated and cha...
How to get a one-dimensional scalar array as a doctrine dql query result?
...
getScalarResult() will give you strings - use getArrayResult() if you want integers
– pHoutved
Feb 19 '15 at 23:36
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REST API Authentication
...every HTTP request, eg: Authorization: Basic Ym9ic2Vzc2lvbjE6czNjcmV0
The string Ym9ic2Vzc2lvbjE6czNjcmV0 above is just the string "bobsession1:s3cret" (which is a username/password) encoded in Base64.
To obtain the temporary session token above, provide an API function (eg: http://mycompany.com/ap...
What is the dependency inversion principle and why is it important?
..., the way you would use it should be relatively stable in time. If you can extract an interface that represents the concept of logging, this interface should be much more stable in time than its implementation, and call sites should be much less affected by changes you could make while maintaining o...
iOS 7 TextKit - How to insert images inline with text?
...
You'll need to use an attributed string and add the image as instance of NSTextAttachment:
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:@"like after"];
NSTextAttachment *textAttachment = [[NSTextAttachment...
How to hide a button programmatically?
...ttons which are overlapping.
@Override
public void onClick(View v) {
String curText = ((TextView)v).getText();
if(curText.equals("Play")){
((TextView)v).setText("Stop");
}
if(curText.equals("Stop")){
((TextView)v).setText("Play");
}
}
...
Please explain the exec() function and its family
... family have different behaviours:
l : arguments are passed as a list of strings to the main()
v : arguments are passed as an array of strings to the main()
p : path/s to search for the new running program
e : the environment can be specified by the caller
You can mix them, therefore you have:
...
How to grep (search) committed code in the Git history
...:
this looks for differences that introduce or remove an instance of <string>.
It usually means "revisions where you added or removed line with 'Foo'".
the --pickaxe-regex option allows you to use extended POSIX regex instead of searching for a string.
Example (from git log): git log -S"frot...