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Checkout old commit and make it a new commit [duplicate]

... with a large repo it takes awhile to delete all of the files and then check them all back out. I feel like git should have a way to revert to an old revision without having to delete everything. But that's just my opinion, this worked well for me and I didn't see a be...
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jQuery UI Tabs - How to Get Currently Selected Tab Index

... Looks like this actually gives the default tab, not the currently selected tab. What am I missing? 42 votes can't be wrong, can they? jqueryui.com/demos/tabs/#option-selected – Patrick Szalapski Dec 9 '1...
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How to unload a package without restarting R

...nt version and a stable version in different libraries). To guarantee that all copies are detached, use this function. detach_package <- function(pkg, character.only = FALSE) { if(!character.only) { pkg <- deparse(substitute(pkg)) } search_item <- paste("package", pkg, sep = ":...
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How Does Modulus Divison Work

I don't really understand how modulus division works. I was calculating 27 % 16 and wound up with 11 and I don't understand why. ...
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What's the best way to limit text length of EditText in Android

...d:maxLength is equivalent to InputFilter.LengthFilter, so when programmatically changing it's filter, you have modified its XML filter as well. – mr5 Aug 1 '15 at 3:00 22 ...
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When should I use double instead of decimal?

...these errors are significant enough to warrant much thought however. In all cases, if you want to compare two floating-point numbers that should in theory be equivalent (but were arrived at using different calculations), you need to allow a certain degree of tolerance (how much varies, but is typ...
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Difference between FetchType LAZY and EAGER in Java Persistence API?

...here's a relationship between them. For example, you might have an entity called University and another entity called Student and a University might have many Students: The University entity might have some basic properties such as id, name, address, etc. as well as a collection property called stu...
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View differences of branches with meld?

... I also found this issue annoying so I've made git meld which allows a more comfortable way of diffing arbitrary commits against the working tree or the staging area. You can find it at https://github.com/wmanley/git-meld . It's a bit like Mark's script but works for comparing any arbi...
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Memcache(d) vs. Varnish for speeding up 3 tier web architecture

...ache will provide info for pages that have a mixture of known and new data allowing you to generate pages faster. An example that could apply to stackoverflow.com: adding this comment invalidated the page cache, so this page would have to be cleared from Varnish (and also my profile page, which pr...
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Creating a div element in jQuery [duplicate]

... @Ricki - no, use double-quotes for all attributes. Single quotes do not produce valid XHTML, although most browsers will tolerate it. – halfer Oct 22 '11 at 12:21 ...