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Is there a difference between “throw” and “throw ex”?
...and on Marc's answer a bit, you can find more details here: geekswithblogs.net/sdorman/archive/2007/08/20/…
– Scott Dorman
Apr 8 '09 at 14:38
3
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Returning a value from thread?
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It depends on how do you want to create the thread and available .NET version:
.NET 2.0+:
A) You can create the Thread object directly. In this case you could use "closure" - declare variable and capture it using lambda-expression:
object result = null;
Thread thread = new System.Threadi...
How to calculate date difference in JavaScript?
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var DateDiff = {
inDays: function(d1, d2) {
var t2 = d2.getTime();
var t1 = d1.getTime();
return parseInt((t2-t1)/(24*3600*1000));
},
inWeeks: function(d1, d2) {
var t2 = d2.getTime();
var t1 = d1.getTime();
...
how to concatenate two dictionaries to create a new one in Python? [duplicate]
...enate the items and call dict on the resulting list:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = dict(d1.items() + d2.items() + d3.items())'
100000 loops, best of 3: 4.93 usec per loop
Fastest: exploit the dict constructor to the hilt, then one update:
$ python -mti...
How do you round a number to two decimal places in C#?
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The reason that .NET defaults to MidPointRounding.ToEven (aka "Bankers Rounding") is because the we all learned to round in school where .5 rounds up causes too much rounding up. This is a problem when dealing with money, tax calculations, et...
Windbg Step 2 分析程序堆栈实战 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...b symbols) c:\websymbols\msvcr90d.i386.pdb\EBEA784C96244F1E8F8D35E0391C898D1\msvcr90d.i386.pdb
75100000 75200000 kernel32 (deferred)
76750000 76796000 KERNELBASE (deferred)
77500000 77680000 ntdll (pdb symbols) c:\websymbols\wntdll.pdb\ACE318E6A2...
How to find the duration of difference between two dates in java?
...o much like the Joda-Time way as answered by MayurB. joda-time.sourceforge.net
– johnkarka
Jun 4 '14 at 22:26
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Getting key with maximum value in dictionary?
...ive you an idea, here are some candidate methods:
def f1():
v=list(d1.values())
k=list(d1.keys())
return k[v.index(max(v))]
def f2():
d3={v:k for k,v in d1.items()}
return d3[max(d3)]
def f3():
return list(filter(lambda t: t[1]==max(d1.values()), d1.items()))[0][0] ...
How do I make a list of data frames?
...p creating variables y1 and y2 in whatever environment you're working in:
d1 <- data.frame(y1 <- c(1, 2, 3), y2 <- c(4, 5, 6))
y1
# [1] 1 2 3
y2
# [1] 4 5 6
This won't have the seemingly desired effect of creating column names in the data frame:
d1
# y1....c.1..2..3. y2....c.4..5..6.
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Python: Check if one dictionary is a subset of another larger dictionary
...are hashable, using viewitems() is the most optimizied way I can think of: d1.viewitems() <= d2.viewitems(). Timeit runs showed over a 3x performance improvement. If not hashable, even using iteritems() instead of items() leads to about a 1.2x improvement. This was done using Python 2.7.
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