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Is it a good practice to use try-except-else in Python?
...ns inherent in some of the "look-before-you-leap" constructs. For example, testing os.path.exists results in information that may be out-of-date by the time you use it. Likewise, Queue.full returns information that may be stale. The try-except-else style will produce more reliable code in these ca...
How do I deep copy a DateTime object?
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I haven't tested it actually, but it is mentioned at php.net that this is only aviable for PHP 5.3 and greater.
– hugo der hungrige
Feb 1 '13 at 1:02
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Passing data to a bootstrap modal
... make this work using jQuery's .on event handler.
Here's a fiddle you can test; just make sure to expand the HTML frame in the fiddle as much as possible so you can view the modal.
http://jsfiddle.net/Au9tc/605/
HTML
<p>Link 1</p>
<a data-toggle="modal" data-id="ISBN564541" title...
How to export JavaScript array info to csv (on client side)?
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Based on the answers above I created this function that I have tested on IE 11, Chrome 36 and Firefox 29
function exportToCsv(filename, rows) {
var processRow = function (row) {
var finalVal = '';
for (var j = 0; j < row.length; j++) {
var innerValue ...
Get second child using jQuery
...jsperf.com/second-child-selector
The $(t).first().next() method is the fastest here, by far.
But, on the other hand, if you take the <tr> node and find the <td> children and and run the same test, the results won't be the same.
Hope it helps. :)
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Youtube iframe wmode issue
...=opaque to the URL seems to solve this problem for me, although I have not tested it in IE yet.
For those of you having troubles with the previously proposed solution, note that an inital ampersand will only work if you are already supplying other arguments to the URL. The first argument must have ...
Strengths of Shell Scripting compared to Python [closed]
...rite a simple shell loop to do a number of operations using commands like "test" and "expr" and compare the run times with a Python script that uses the "os" module. Commands like test and expr often involve forking a subprocess to do the real work.
– S.Lott
A...
Why does Lua have no “continue” statement?
... a=1 --change outer a
end
local a=f() -- inner a
until a==0 -- test inner a
The declaration of local a inside the loop body masks the outer variable named a, and the scope of that local extends across the condition of the until statement so the condition is testing the innermost a.
If...
Assign variable in if condition statement, good practice or not? [closed]
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The last example doesn't work, however, if you're testing for fail/success of a function that returns a boolean. In other words, while if (resultArr = myNeedle.exec(myHaystack)) {...} works, if ((resultArr = myNeedle.exec(myHaystack)) === true) {...} does not because the as...
Java array reflection: isArray vs. instanceof
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In most cases, you should use the instanceof operator to test whether an object is an array.
Generally, you test an object's type before downcasting to a particular type which is known at compile time. For example, perhaps you wrote some code that can work with a Integer[] or an i...