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Visual Studio Editor does not underline errors anymore
...lly tell when, but it can be related to the installation of .Net Framework 3.5 SP 1 or the MVC Beta (which I guess is unlikely). Furthermore have I installed and uninstalled both CodeRush and Resharper for evaluation purposes (decided not to keep either one of them).
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Difference between var_dump,var_export & print_r
...(4) {
[0]=> string(0) ""
[1]=> bool(false)
[2]=> int(42)
[3]=> array(1) {[0]=>string(2) "42")}
}
print_r is for debugging purposes, too, but does not include the member's type. It's a good idea to use if you know the types of elements in your array, but can be misleading oth...
Remap values in pandas column with a dict
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373
You can use .replace. For example:
>>> df = pd.DataFrame({'col2': {0: 'a', 1: 2, 2:...
When does invoking a member function on a null instance result in undefined behavior?
...stand is why it's undefined behavior to dereference a null pointer. In C++03, there's actually a bit of ambiguity here.
Although "dereferencing a null pointer results in undefined behavior" is mentioned in notes in both §1.9/4 and §8.3.2/4, it's never explicitly stated. (Notes are non-normative.)...
How to set selected value of jquery select2?
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63
To dynamically set the "selected" value of a Select2 component:
$('#inputID').select2('data', {...
.bashrc/.profile is not loaded on new tmux session (or window) — why?
... |
edited Mar 11 '12 at 3:44
answered Mar 11 '12 at 3:38
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Best way to create unique token in Rails?
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335
-- Update --
As of January 9th, 2015. the solution is now implemented in Rails 5 ActiveRecord...