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How can you check which options vim was compiled with?
...ction with the feature you are looking for. The code below will return a 1 if it has the feature or 0 if it does not.
:echo has('python')
For a list of features see :h +feature-list
For more information see:
:h :version
:h has(
:h feature-list
...
difference between primary key and unique key
...cannot be NULL - e.g. MySQL adds NOT NULL
Primary Key is a unique key identifier of the record
Unique Key:
Can be more than one unique key in one table
Unique key can have NULL values
It can be a candidate key
Unique key can be NULL ; multiple rows can have NULL values and therefore may not be c...
include external .js file in node.js app
...se has been saying var foo in top level does not create a global variable. If you want a global variable then write global.foo. but we all know globals are evil.
If you are someone who uses globals like that in a node.js project I was on I would refactor them away for as there are just so few use c...
How to avoid warning when introducing NAs by coercion
...t the problematic characters to NA first. For your particular problem, taRifx::destring does just that. This way if you get some other, unexpected warning out of your function, it won't be suppressed.
> library(taRifx)
> x <- as.numeric(c("1", "2", "X"))
Warning message:
NAs introduced b...
Do you use source control for your database items? [closed]
...First get src ctrl, then think about a tool.
– ulty4life
Oct 27 '10 at 22:42
1
There's a distribu...
Search for all files in project containing the text 'querystring' in Eclipse
...le Search" tab.
additional search options
search for resources: Ctrl + Shift + R
search for Java types: Ctrl + Shift + T
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What are paramorphisms?
...of the input and gives just the output value. It's not very efficient, but if you're interested in sheer expressivity, para gives you no more than foldr. If you use this foldr-encoded version of para, then safeTail will take linear time after all, copying the tail element by element.
So, that's it:...
What is the difference between Normalize.css and Reset CSS?
...
I work on normalize.css.
The main differences are:
Normalize.css preserves useful defaults rather than "unstyling" everything. For example, elements like sup or sub "just work" after including normalize.css (and are actually made more robust) whereas they ar...
Why was the switch statement designed to need a break?
... Java probably didn't want to break habits and spread confusion. For a different behavior, they would have to use different semantics. Java designers lost a number of opportunities to break from C, anyway.
– PhiLho
Oct 31 '08 at 6:30
...
What are the use(s) for tags in Go?
In the Go Language Specification , it mentions a brief overview of tags:
3 Answers
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