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How can I see what has changed in a file before committing to git?
I've noticed that while working on one or two tickets, if I step away, I'm not sure what I worked on, what changed, etcetera.
...
What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
...ject]". When following the steps from §9.3.1, we get NaN as a result:
If the grammar cannot interpret the String as an expansion of StringNumericLiteral, then the result of ToNumber is NaN.
Array(16).join("wat" - 1)
As per §15.4.1.1 and §15.4.2.2, Array(16) creates a new array with length 1...
What guarantees are there on the run-time complexity (Big-O) of LINQ methods?
...N²).
Contains checks for an ICollection implementation, so it may be O(1) if the underlying collection is also O(1), such as a HashSet<T>, but this is depends on the actual data structure and is not guaranteed. Hash sets override the Contains method, that's why they are O(1).
OrderBy methods...
Android: Storing username and password?
If I want to store the username and password to be used inside an Android application, what is the best way to do it? Is it through the preferences screen (but what if the user misses this?), or pop up a dialog box and ask the user for the credentials? If so, I do have to maintain state for the appl...
How to change current Theme at runtime in Android [duplicate]
...rk);
// ...
setContentView(R.layout.main);
}
Edit
If you call setTheme after super.onCreate(savedInstanceState); your activity recreated but if you call setTheme before super.onCreate(savedInstanceState); your theme will set and activity
does not recreate anymore
protect...
How to nicely format floating numbers to String without unnecessary decimal 0?
...
If the idea is to print integers stored as doubles as if they are integers, and otherwise print the doubles with the minimum necessary precision:
public static String fmt(double d)
{
if(d == (long) d)
return Stri...
How do I generate random number for each row in a TSQL Select?
I need a different random number for each row in my table. The following seemingly obvious code uses the same random value for each row.
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Adjust width of input field to its input
...mically to the width of the textbox based on the contents of the textbox. If so you will need some js to run on textbox contents changing, something like this:
<input id="txt" type="text" onkeypress="this.style.width = ((this.value.length + 1) * 8) + 'px';">
Note: this solution only works ...
How do I temporarily disable triggers in PostgreSQL?
I'm bulk loading data and can re-calculate all trigger modifications much more cheaply after the fact than on a row-by-row basis.
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How to check if a particular service is running on Ubuntu
...':
sudo service --status-all | grep postgres
Or you may use another way if you know correct name of service:
sudo service postgresql status
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