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What is the proper way to re-throw an exception in C#? [duplicate]
...n("Not enough room in array to copy elements starting at index given.");
_innerList.CopyTo(array, arrayIndex);
}
That's not the worse code because it's boilerplate and we can probably just copy it from some other implementation of CopyTo where it wasn't a simple pass-through and we had to implem...
How to preventDefault on anchor tags?
...lem a lot, a simple directive that would fix this issue is the following:
app.directive('a', function() {
return {
restrict: 'E',
link: function(scope, elem, attrs) {
if(attrs.ngClick || attrs.href === '' || attrs.href === '#'){
elem.on('click', funct...
Using pickle.dump - TypeError: must be str, not bytes
..., that's why you are here.
import pickle
class MyUser(object):
def __init__(self,name):
self.name = name
user = MyUser('Peter')
print("Before serialization: ")
print(user.name)
print("------------")
serialized = pickle.dumps(user)
filename = 'serialized.native'
with open(filename,...
What is a memory fence?
...annot cache the variable value. The Linux kernel uses a gcc extension (asm __volatile__("": : :"memory")) to create a full compiler optimization barrier.
– CesarB
Nov 13 '08 at 10:36
...
surface plots in matplotlib
...a surface.
Here's a smooth surface example:
import numpy as np
from mpl_toolkits.mplot3d import Axes3D
# Axes3D import has side effects, it enables using projection='3d' in add_subplot
import matplotlib.pyplot as plt
import random
def fun(x, y):
return x**2 + y
fig = plt.figure()
ax = fi...
Pretty-print an entire Pandas Series / DataFrame
I work with Series and DataFrames on the terminal a lot. The default __repr__ for a Series returns a reduced sample, with some head and tail values, but the rest missing.
...
JSTL in JSF2 Facelets… makes sense?
...:forEach items="#{bean.items}" var="item">
<h:outputText id="item_#{item.id}" value="#{item.value}" />
</c:forEach>
...creates during view build time three separate <h:outputText> components in the JSF component tree, roughly represented like this:
<h:outputText id="it...
Convert string to Python class object?
...; class Foo(object):
... pass
...
>>> eval("Foo")
<class '__main__.Foo'>
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Python 3 turn range to a list
...
You can just construct a list from the range object:
my_list = list(range(1, 1001))
This is how you do it with generators in python2.x as well. Typically speaking, you probably don't need a list though since you can come by the value of my_list[i] more efficiently (i + 1), and...
Check if all elements in a list are identical
...for very large arrays, a native solution which optimizes away calls to obj.__eq__ when lhs is rhs, and out-of-order optimizations to allow short circuiting sorted lists more quickly.
– Glenn Maynard
Oct 2 '10 at 8:31
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