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In a javascript array, how do I get the last 5 elements, excluding the first element?
... huge javascript minified file if your trying to do it from your browser.
_.slice(_.rest(arr), -5)
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Select mySQL based only on month and year
...
Is this true for EXTRACT(YEAR_MONTH FROM Date)?
– cmbuckley
Feb 1 '12 at 23:59
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Disable a Button
...
I also get an error if I change (_ sender: ) to UIButton . The error reads: Value of type '(UIButton) -> ()' has no member 'isEnabled'
– user9470831
Feb 5 '19 at 4:25
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How to set default values in Rails?
...ay:
class SetDefault < ActiveRecord::Migration
def self.up
change_column :people, :last_name, :type, :default => "Doe"
end
def self.down
# You can't currently remove default values in Rails
raise ActiveRecord::IrreversibleMigration, "Can't remove the default"
end
end
Be...
How do I check if a variable exists?
...ar exists.
To check if an object has an attribute:
if hasattr(obj, 'attr_name'):
# obj.attr_name exists.
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Auto-fit TextView for Android
... super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ViewGroup container = (ViewGroup) findViewById(R.id.container);
findViewById(R.id.button1).setOnClickListener(new OnClickListener() {
@Override
public void onClick(final View v) {
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get size of json object
... check the size i.e. like that:
var data = {one : 1, two : 2, three : 3};
_.size(data);
//=> 3
_.keys(data);
//=> ["one", "two", "three"]
_.keys(data).length;
//=> 3
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Using the rJava package on Win7 64 bit with R
...l find the jvm.dll automatically, without manually setting the PATH or JAVA_HOME. However note that:
To use rJava in 32-bit R, you need Java for Windows x86
To use rJava in 64-bit R, you need Java for Windows x64
To build or check R packages with multi-arch (the default) you need to install both ...
“:” (colon) in C struct - what does it mean? [duplicate]
...erstand why test4: 4 and I got test4: 2 on Darwin Kernel Version 17.0.0 x86_64
– Aleksey
Oct 5 '17 at 10:14
1
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Combine --user with --prefix error with setup.py install
...me workaround:
pip install --user --install-option="--prefix=" <package_name>
or
python setup.py install --user --prefix=
Note that there is no text (not even whitespace) after the =.
Do not forget the --user flag.
Installing multiple packages:
Create ~/.pydistutils.cfg (or equivalent...