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Are there disadvantages to using a generic varchar(255) for all text-based fields?
...l benefits to avoid the memory waste I described above.
It's hard to know what the longest postal address is, of course, which is why many people choose a long VARCHAR that is certainly longer than any address. And 255 is customary because it is the maximum length of a VARCHAR for which the length...
Android ImageView Zoom-in and Zoom-Out
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whenever i tap on image it zooms. what should i do to stop it
– Muhammad Umar
Dec 13 '12 at 15:22
3
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How can I get a Bootstrap column to span multiple rows?
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This is a great answer, but what if box 5 needed to extend into row 3 as well, and more-so, dynamically?
– Misha'el
Feb 19 '16 at 2:12
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Read an Excel file directly from a R script
... Can't argue with "you really need to look at your numbers" ... what is the issue with "-" fields? does na.strings="-" address the problem? How many of these issues are generic and how many of them (e.g. numeric fields with commas) can be addressed with other tools such as XLConnect ...?...
How can I parse a CSV string with JavaScript, which contains comma in data?
... that may contain escaped characters. Also, the OP does not clearly define what a "CSV string" really is. First we must define what constitutes a valid CSV string and its individual values.
Given: "CSV String" Definition
For the purpose of this discussion, a "CSV string" consists of zero or more val...
JavaScript get clipboard data on paste event (Cross browser)
...in particular, Firefox < 22).
When you need to support older browsers, what you can do is quite involved and a bit of a hack that will work in Firefox 2+, IE 5.5+ and WebKit browsers such as Safari or Chrome. Recent versions of both TinyMCE and CKEditor use this technique:
Detect a ctrl-v / sh...
Where in a virtualenv does the custom code go?
What sort of directory structure should one follow when using virtualenv ? For instance, if I were building a WSGI application and created a virtualenv called foobar I would start with a directory structure like:
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HTML5: Slider with two inputs possible?
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WhatWG is at least discussing implementing it: html.spec.whatwg.org/multipage/…
– kunambi
Feb 26 '15 at 13:32
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Is pass-by-value a reasonable default in C++11?
...s a reasonable default if you need to make a copy inside the body. This is what Dave Abrahams is advocating:
Guideline: Don’t copy your function arguments. Instead, pass them by value and let the compiler do the copying.
In code this means don't do this:
void foo(T const& t)
{
auto ...
How do I catch a numpy warning like it's an exception (not just for testing)?
...ould edit your question and add the exact output, otherwise we cannot tell what's wrong. It might be possible that numpy defines this warning class somewhere and you have to discovere in which subpackage to be able to catch it. Never mind, I discovered that you should use RuntimeWarning. Updated the...