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Add to Array jQuery
...
For JavaScript arrays, you use push().
var a = [];
a.push(12);
a.push(32);
For jQuery objects, there's add().
$('div.test').add('p.blue');
Note that while push() modifies the original array in-place, add() returns a new jQuery object, it does not modify the original one.
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Passing a list of kwargs?
...f method(**kwargs):
print kwargs
keywords = {'keyword1': 'foo', 'keyword2': 'bar'}
method(keyword1='foo', keyword2='bar')
method(**keywords)
Running this in Python confirms these produce identical results:
{'keyword2': 'bar', 'keyword1': 'foo'}
{'keyword2': 'bar', 'keyword1': 'foo'}
...
Java SE 6 vs. JRE 1.6 vs. JDK 1.6 - What do these mean?
...uild 1.6.0_07-b06"), and the HotSpot version (on mine, that's "build 10.0-b23, mixed mode"). I suspect the "11.0" you are seeing is the HotSpot version.
Update: HotSpot is (or used to be, now they seem to use it to mean the whole VM) the just-in-time compiler that is built in to the Java Virtual M...
Apache Spark: map vs mapPartitions?
...
122
What's the difference between an RDD's map and mapPartitions method?
The method map conver...
Python 2.7: Print to File
...
If you want to use the print function in Python 2, you have to import from __future__:
from __future__ import print_function
But you can have the same effect without using the function, too:
print >>f1, 'This is a test'
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Selecting pandas column by location
... to mind:
>>> df
A B C D
0 0.424634 1.716633 0.282734 2.086944
1 -1.325816 2.056277 2.583704 -0.776403
2 1.457809 -0.407279 -1.560583 -1.316246
3 -0.757134 -1.321025 1.325853 -2.513373
4 1.366180 -1.265185 -2.184617 0.881514
>>> df.iloc[...
Uninstall old versions of Ruby gems
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edited Dec 28 '13 at 23:39
Steven Penny
76.1k4545 gold badges296296 silver badges336336 bronze badges
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Python unittests in Jenkins?
...ample tests:
tests.py:
# tests.py
import random
try:
import unittest2 as unittest
except ImportError:
import unittest
class SimpleTest(unittest.TestCase):
@unittest.skip("demonstrating skipping")
def test_skipped(self):
self.fail("shouldn't happen")
def test_pass(sel...
Declaring and initializing variables within Java switches
...he right in the local variable declaration statement.
In your case, case 2 is in the same block as case 1 and appears after it, even though case 1 will never execute... so the local variable is in scope and available for writing despite you logically never "executing" the declaration. (A declarati...
What does the tilde (~) mean in my composer.json file?
...de means next significant release. In your case, it is equivalent to >= 2.0, < 3.0.
The full explanation is at Tilde Version Range docs page:
The ~ operator is best explained by example: ~1.2 is equivalent to >=1.2 <2.0.0, while ~1.2.3 is equivalent to >=1.2.3 <1.3.0.
Ano...