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How do I stop a Git commit when VI is on the screen waiting for a commit message?
... have two options:
Provide an empty commit message. If it's a new commit and you haven't yet saved the message, you can simply use :q! (quit without saving). If you’ve already saved (or you're amending a previous commit), just delete the entire log message and save again. This can be done with g...
Does a foreign key automatically create an index?
...se through a FK-relationship, you'll often need to lookup a relating table and extract certain rows based on a single value or a range of values.
So it makes good sense to index any columns involved in a FK, but a FK per se is not an index.
Check out Kimberly Tripp's excellent article "When did SQ...
Android OnClickListener - identify a button
...b1);
b2 = (Button) findViewById(R.id.b2);
b1.setOnClickListener(myhandler1);
b2.setOnClickListener(myhandler2);
...
}
View.OnClickListener myhandler1 = new View.OnClickListener() {
public void onClick(View v) {
// it was the 1st button
}
};
View.OnClickListener ...
How can I make Flexbox children 100% height of their parent?
... Please add removing height: 100% to the answer - I nearly gave up and only saw this at the last moment before reverting to absolute - which comes with all sorts of problems.
– Peter
May 2 at 10:18
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convert a list of objects from one type to another using lambda expression
I have a foreach loop reading a list of objects of one type and producing a list of objects of a different type. I was told that a lambda expression can achieve the same result.
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Determine whether JSON is a JSONObject or JSONArray
...u have an array
tokenizer is able to return more types: http://developer.android.com/reference/org/json/JSONTokener.html#nextValue()
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How to check for the type of a template parameter?
Suppose I have a template function and two classes
4 Answers
4
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UINavigationController “back button” custom text?
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Just to clarify Tyler's comment because I did not understand this at first: Setting the backBarButtonItem in a view controllers navigationItem is setting the button that will show to get BACK to this view controller. Also note that although there is no button style for the arrow bu...
What is a reasonable order of Java modifiers (abstract, final, public, static, etc.)?
...ge order of the modifiers is mentioned in the Java Language Specification (and not the Java Virtual Machine Specification) e.g. for class modifiers you will find the following definition (extract):
ClassModifiers:
ClassModifier
ClassModifiers ClassModifier
ClassModifier: one of
Annotat...
How do I create an empty array/matrix in NumPy?
...t I would normally use a list. I want to create an empty array (or matrix) and then add one column (or row) to it at a time.
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