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How to check if a variable exists in a FreeMarker template?
...if it exists. I think that checking for existence and emptiness is a good idea in a lot of cases, and makes your template more robust and less prone to silly errors. In other words, if you check to make sure your variable is not null AND not empty before using it, then your template becomes more f...
How can I move a single directory from a git repository to a new repository whilst maintaining the h
...ts 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 revision history of the individual projects if possible.
...
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.
3 Answers
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How to Sync iPhone Core Data with web server, and then push to other devices? [closed]
...pplies equally well to core data with some obvious modifications. This provides an overall much more robust and reliable sync strategy, but requires more effort to be implemented correctly.
EDIT:
It seems that the Grover's pdf file is no longer available (broken link, March 2015). UPDATE: the link...
Assign multiple columns using := in data.table, by group
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Create Directory if it doesn't exist with Ruby
...
@TWiStErRob: Read my comments again, I said nothing about fileutils or mkdir_p, all I'm saying is that system command, arg1, arg2, ... is better than system command_with_arguments.
– mu is too short
Aug 10 '15 at 16:56
...
What is “point free” style (in Functional Programming)?
... In what way is it related to Currying?
– kaleidic
Oct 2 '10 at 22:50
1
@kaleidic: Because...
Does .NET have a way to check if List a contains all items in List b?
...
You could also use another way. Override equals and use this
public bool ContainsAll(List<T> a,List<T> check)
{
list l = new List<T>(check);
foreach(T _t in a)
{
if(check.Contains(t))
{
check.Remove(t);
i...
How do I download a tarball from GitHub using cURL?
...
Whoa. I didn't think this could possibly get better than what you'd already shared. Thank you very much!
– l3l_aze
Aug 18 at 15:57
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Why do you program in assembly? [closed]
...amming in assembly is the same as it always has been: speed. It would be ridiculous to write a lot of code in assembler, but there are some optimizations the compiler isn't aware of, and for a small enough window of code, a human is going to do better.
For example, for floating point, compilers te...