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Disable Required validation attribute under certain circumstances
I was wondering if it is possible to disable the Required validation attribute in certain controller actions. I am wondering this because on one of my edit forms I do not require the user to enter values for fields that they have already specified previously. However I then implement logic that when...
Trimming a huge (3.5 GB) csv file to read into R
...has a lot of detail and incomplete rows (leading Access and SQL to choke). It's county level data set broken into segments, sub-segments, and sub-sub-segments (for a total of ~200 factors) for 40 years. In short, it's huge, and it's not going to fit into memory if I try to simply read it.
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Compare two files line by line and generate the difference in another file
I want to compare file1 with file2 and generate a file3 which contains the lines in file1 which are not present in file2.
1...
Add leading zeroes/0's to existing Excel values to certain length
There are many, many questions and quality answers on SO regarding how to prevent leading zeroes from getting stripped when importing to or exporting from Excel. However, I already have a spreadsheet that has values in it that were truncated as numbers when, in fact, they should have been handled a...
Handling Touch Event in UILabel and hooking it up to an IBAction
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Check it out:
UILabel *label = ...
label.userInteractionEnabled = YES;
UITapGestureRecognizer *tapGesture =
[[UITapGestureRecognizer alloc] initWithTarget:self
action:@selector(...
Can we omit parentheses when creating an object using the “new” operator?
...nly, JavaScript simplifies the grammar by allowing the parenthesis to be omitted if there are no arguments in the function call. Here are some examples using the new operator:
o = new Object; // Optional parenthesis omitted here
d = new Date();
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Personally, I always use the parenthesis, eve...
Can Android do peer-to-peer ad-hoc networking?
Is it possible to set up Android in ad-hoc peer-to-peer wifi mode? For example, I would like to have one phone broadcast a message, and have all peers in the network receive the broadcast, without having a server. I would like to use wifi since bluetooth range is more limited.
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PHP function overloading
...names and do not include argument lists, so you cannot have two functions with the same name. Class method overloading is different in PHP than in many other languages. PHP uses the same word but it describes a different pattern.
You can, however, declare a variadic function that takes in a variabl...
How does lombok work?
I met lombok today.
I'm very anxious to know how it works.
A Java Geek Article gives some clues but it's not perfectly clear to me:
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Difference between session affinity and sticky session?
What is the difference between session affinity and sticky session in context of load balancing servers?
7 Answers
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