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What's “tools:context” in Android layout files?
...ction; an activity can call setContentView(layout) to display a layout) in order to drive certain features.
Right now, we're using it for one thing only: Picking the right theme to show for a layout (since the manifest file can register themes to use for an activity, and once we know the activity a...
How to show particular image as thumbnail while implementing share on Facebook?
... that facebook does do some caching with regard to this information, so in order for changes to take effect your page will have t be scraped as stated in the documentation :
Editing Meta Tags
You can update the attributes of your page by updating your page's
tags. Note that og:title an...
How to solve “Plugin execution not covered by lifecycle configuration” for Spring Data Maven Builds
... like that error is due to a missing <pluginManagement> tag. So, in order to avoid the exceptions in Eclipse, one needs to simply enclose all the plugin tags inside a <pluginManagement> tag, like so:
<build>
<pluginManagement>
<plugins>
<plu...
How to print the values of slices
...t (instead of []Project), you are better off defining a String() method in order to display exactly what you want to see (or you will see only pointer address).
See this play.golang example.
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Undo git pull, how to bring repos to old state
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Running git pull performs the following tasks, in order:
git fetch
git merge
The merge step combines branches that have been setup to be merged in your config. You want to undo the merge step, but probably not the fetch (doesn't make a lot of sense and shouldn't be nece...
“Active Directory Users and Computers” MMC snap-in for Windows 7?
...rverAdministrationTools-Roles-AD-DS-SnapIns
Note - I had to run these in order for AD Users and Computers to show up, as they were disabled on my computer after the install. This might not be the case for all users.
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What's the difference between VARCHAR and CHAR?
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@jdc91: in order to have a performance increase the whole row has to be fixed-width. MySQL gains advantage calculating the space requirements and offset of rows in that kind of table.
– Marco Demaio
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What's the safest way to iterate through the keys of a Perl hash?
...may work for some data sets but will fail for others depending on the hash order.
As already noted, it is safe to delete the last key returned by each. This is not true for keys as each is an iterator while keys returns a list.
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Use URI builder in Android or create URL with variables
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I was confused in what order url are made, because in course its only variables not the complete url, that we have to make
– blackHawk
Mar 6 '17 at 16:12
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What is the difference between README and README.md in GitHub projects?
... see at the bottom of projects. Github has their own flavor of Markdown.
Order of Preference: If you have two files named README and README.md, the file named README.md is preferred, and it will be used to generate github's html summary.
FWIW, Stack Overflow uses local Markdown modifications as...