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How to identify numpy types in python?
...
Use the builtin type function to get the type, then you can use the __module__ property to find out where it was defined:
>>> import numpy as np
a = np.array([1, 2, 3])
>>> type(a)
<type 'numpy.ndarray'>
>>> type(a).__module__
'numpy'
>>> type(a).__m...
How to make JavaScript execute after page load?
...g that the code as written results in handlers being fired in an undefined order when attached with attachEvent(). If order-of-handler-execution is important you may want to leave out the window.attachEvent branch.
– Grant Wagner
May 4 '09 at 20:00
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HTML table with 100% width, with vertical scroll inside tbody [duplicate]
...
In order to make <tbody> element scrollable, we need to change the way it's displayed on the page i.e. using display: block; to display that as a block level element.
Since we change the display property of tbody, we shou...
Is there an IDictionary implementation that, on missing key, returns the default value instead of th
...ctionary<TKey, TValue>
{
private IDictionary<TKey, TValue> _dict = new Dictionary<TKey, TValue>();
public TValue this[TKey key]
{
get
{
TValue val;
if (!TryGetValue(key, out val))
return default(TValue);
...
This type of CollectionView does not support changes to its SourceCollection from a thread different
...cher.Invoke((Action)delegate // <--- HERE
{
_matchObsCollection.Add(match);
});
}
}
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How to measure time taken between lines of code in python?
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If you want to measure CPU time, can use time.process_time() for Python 3.3 and above:
import time
start = time.process_time()
# your code here
print(time.process_time() - start)
First call turns the timer on, and second call tells you how many seconds have elapsed.
The...
Passing parameters to JavaScript files
...ode belongs in file.js:
var MYLIBRARY = MYLIBRARY || (function(){
var _args = {}; // private
return {
init : function(Args) {
_args = Args;
// some other initialising
},
helloWorld : function() {
alert('Hello World! -' + _args[0])...
How can I list ALL grants a user received?
...s rsp ON (rp.granted_role = rsp.role)
WHERE rp.grantee = <theUser>
ORDER BY 1;
Direct grants to tables/views:
SELECT owner, table_name, select_priv, insert_priv, delete_priv, update_priv, references_priv, alter_priv, index_priv
FROM table_privileges
WHERE grantee = <theUser>
OR...
In-memory size of a Python structure
...g/measure-real-size-any-python-object/
The punchline:
import sys
def get_size(obj, seen=None):
"""Recursively finds size of objects"""
size = sys.getsizeof(obj)
if seen is None:
seen = set()
obj_id = id(obj)
if obj_id in seen:
return 0
# Important mark as s...
Returning value from Thread
...DownLatch. The value array creation happens-before uiThread start (program order rule) which synchronizes-with the assignment of 2 to value[0] (thread start) which happens-before latch.countDown() (program order rule) which happens-before latch.await() (guarantee from CountDownLatch) which happens-b...