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How to check if a variable exists in a FreeMarker template?
...:
[#if userName??]
Hi ${userName}, How are you?
[/#if]
Or with the standard freemarker syntax:
<#if userName??>
Hi ${userName}, How are you?
</#if>
To check if the value exists and is not empty:
<#if userName?has_content>
Hi ${userName}, How are you?
</#if>
...
How do browser cookie domains work?
...n/subdomain cookie issues that I'm getting, I'd like to know how browsers handle cookies. If they do it in different ways, it would also be nice to know the differences.
...
Real life trading API [closed]
...ems -- see this.
Also, this is something that the exchange has to support and your broker has to allow. Most exchanges I know of, do not allow automated trading without prior permission.
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i...
How to go from Blob to ArrayBuffer
I was studying Blobs, and I noticed that when you have an ArrayBuffer, you can easily convert this to a Blob as follows:
6 ...
How to customize user profile when using django-allauth
...rst/last name as in the example above, then you do not need an extra model and can place things directly into the User model. If you would ask for the user's birthdate, his favorite color or whatever, then you need to setup your own profile model for this. Please have a look here on how to do this: ...
Shorter syntax for casting from a List to a List?
...ible because it would require co/contravariance of the List<T> type, and that just can't be guaranteed in every case. Please read on to see the solutions to this casting problem.
While it seems normal to be able to write code like this:
List<Animal> animals = (List<Animal>) mamma...
Split a string by spaces — preserving quoted substrings — in Python
... Wow, impressive. You posted at the exact same time as @Jerub. And 2 minutes after the question!
– xaviersjs
Jul 10 at 17:04
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How can I generate a self-signed certificate with SubjectAltName using OpenSSL? [closed]
...
Can someone help me with the exact syntax?
It's a three-step process, and it involves modifying the openssl.cnf file. You might be able to do it with only command line options, but I don't do it that way.
Find your openssl.cnf file. It is likely located in /usr/lib/ssl/openssl.cnf:
$ find /us...
How do you print in a Go test using the “testing” package?
...
The structs testing.T and testing.B both have a .Log and .Logf method that sound to be what you are looking for. .Log and .Logf are similar to fmt.Print and fmt.Printf respectively.
See more details here: http://golang.org/pkg/testing/#pkg-index
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How to specify table's height such that a vertical scroll bar appears?
...roperties to define the behaviour of just horizontal overflow (overflow-x) and vertical overflow (overflow-y).
Since you only want the vertical scroll, try this:
table {
height: 500px;
overflow-y: scroll;
}
EDIT:
Apparently <table> elements don't respect the overflow property. This...