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How to check if a variable exists in a FreeMarker template?
I have a Freemarker template which contains a bunch of placeholders for which values are supplied when the template is processed. I want to conditionally include part of the template if the userName variable is supplied, something like:
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How can I move a single directory from a git repository to a new repository whilst maintaining the h
I have inherited a git repository containing multiple projects in separate directories. I'd like to split the repository into new individual repositories, one for each project and then have the master repository contain the projects as submodules. I'd like to do all this whilst maintaining the revis...
In the shell, what does “ 2>&1 ” mean?
In a Unix shell, if I want to combine stderr and stdout into the stdout stream for further manipulation, I can append the following on the end of my command:
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Should I use the Reply-To header when sending emails as a service to others?
Suppose we have an application that acts as a middleman, allowing Company A to send reports to their customers.
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Assign multiple columns using := in data.table, by group
What is the best way to assign to multiple columns using data.table ? For example:
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What is the difference between object keys with quotes and without quotes?
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No, the quotes do not make a difference (unless, as you noted, you want to use a key that’s not a valid JavaScript identifier).
As a side note, the JSON data exchange format does require double quotes around identifiers (and does n...
getSupportActionBar from inside of Fragment ActionBarCompat
I'm starting a new project that uses the AppCompat/ActionBarCompat in v7 support library. I'm trying to figure out how to use the getSupportActionBar from within a fragment. My activity that hosts the fragment extends ActionBarActivity , but I don't see a similar support class for Fragments.
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How to delete a word and go into insert mode in Vim?
In normal mode I can hit Ctrl + E which deletes the rest of the current word and goes to insert mode.
5 Answers
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How to get all child inputs of a div element (jQuery)
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Use it without the greater than:
$("#panel :input");
The > means only direct children of the element, if you want all children no matter the depth just use a space.
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Run a JAR file from the command line and specify classpath
I've compiled a JAR file and specified the Main-Class in the manifest (I used the Eclipse Export function). My dependencies are all in a directory labeled lib . I can't seem to get a straight answer on how to execute my JAR file while specifying it should use the lib/* as the classpath.
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