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How do you downgrade rubygems?
...answered Feb 14 '11 at 13:55
pseidemannpseidemann
2,12922 gold badges1111 silver badges1414 bronze badges
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How to check if a user is logged in (how to properly use user.is_authenticated)?
...letely agree with you about real life syntax. I have heard the (what I consider) lame reasons they have for not using a "real" programming language for the template system, but that's what they did. You can choose to use Jinja2 (jinja.pocoo.org/2) and it will give you full Python capabilities, but s...
Are static fields open for garbage collection?
...arbage collected. The exception is String pool.
So before you suddenly decide to do
private static MyGiantClass myGiantObject = new MyGiantClass()
Think twice as I have learnt the hard way.
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How do I interactively unstage a particular hunk in git?
...tash pop to get back the old changes, and diff to apply the changes you undid. Quite cumbersome... :-(
– Aasmund Eldhuset
Mar 4 '11 at 1:02
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How does TransactionScope roll back transactions?
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I think is this is not entirely true. I did a partial trace of the source code of TransactionScope and and I also saw this msdn.microsoft.com/en-us/library/ms172152(v=vs.90).aspx which says "If it did not create the transaction, the commit occurs whenever Commit is...
How to show vertical line to wrap the line in Vim?
...use (you can put this in your .vimrc):
nnoremap <Leader>H :call<SID>LongLineHLToggle()<cr>
hi OverLength ctermbg=none cterm=none
match OverLength /\%>80v/
fun! s:LongLineHLToggle()
if !exists('w:longlinehl')
let w:longlinehl = matchadd('ErrorMsg', '.\%>80v', 0)
echo "Lo...
Using CSS to insert text
...scalable (at least as it is written). I think Martin Hansen has the right idea, which is to use HTML5 data-* attributes. And you can even use the apostrophe correctly:
html:
<div class="task" data-task-owner="Joe">mop kitchen</div>
<div class="task" data-task-owner="Charles" data-...
convert a JavaScript string variable to decimal/money
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Yes -- parseFloat.
parseFloat(document.getElementById(amtid4).innerHTML);
For formatting numbers, use toFixed:
var num = parseFloat(document.getElementById(amtid4).innerHTML).toFixed(2);
num is now a string with the number formatted with two decimal places.
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Using Server.MapPath() inside a static field in ASP.NET MVC
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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How can I change UIButton title color?
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Superb answer. Its ridiculous how you have to set the state just to change the color though... :(
– Supertecnoboff
Jul 7 '15 at 6:40
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