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How do I find a “gap” in running counter with SQL?
...g and the end of every gap. I understand that I might have to write my own python script that leverages SQL (in my case MySql), but it would be nice if SQL could get me closer to what I want (I have a table with 2 million rows that has gaps, so I will need to slice it into smaller pieces and run som...
mongodb: insert if not exists
...key2':'value2', 'key3':'value3'};
coll.update(key, data, upsert=True); #In python upsert must be passed as a keyword argument
This replaces your if-find-else-update block entirely. It will insert if the key doesn't exist and will update if it does.
Before:
{"key":"value", "key2":"Ohai."}
Afte...
What are the key differences between Scala and Groovy? [closed]
...java at times. However the use case for Groovy is similar to using Ruby / Python - its for an easy to use dynamically typed scripting language where performance is typically not that much of an issue. e.g. many Groovy frameworks contain a ton of Java code for performance (like Grails)
...
Best way to include CSS? Why use @import?
...erarchy, you should do the thing that makes the most logical sense to do.
Python uses import; C uses include; JavaScript has require. CSS has import; when you need it, use it!
2. Once you get to the point where the site needs to scale, concatenate all the CSS.
Multiple CSS requests of any kind - ...
What are the uses of the exec command in shell scripts? [closed]
...er use I found quite handy and worth mentioning here because it relates to python web applications and seems something in between your (awesome) answers 2 and 3. I usually run wsgi web apps (say django or flask) through supervisor calling a gunicorn app: the latter notoriously requiring quite a few ...
HTTP GET Request in Node.js Express
... will serve you well if you need to use an HTTP client on Ruby, PHP, Java, Python, Objective C, .Net or Windows 8 as well. As far as I can tell the unirest libraries are mostly backed by existing HTTP clients (e.g. on Java, the Apache HTTP client, on Node, Mikeal's Request libary) - Unirest just pu...
How do I load an HTML page in a using JavaScript?
...lution, for my needs I ended up having to go another route and requiring a python server and using the regular Jquery load() function for external dynamically loaded html. But this was helpful for getting me along in my issue
– rwarner
Apr 7 '17 at 16:07
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What exactly is nullptr?
...
Well, other languages have reserved words that are instances of types. Python, for instance:
>>> None = 5
File "<stdin>", line 1
SyntaxError: assignment to None
>>> type(None)
<type 'NoneType'>
This is actually a fairly close comparison because None is typicall...
xpath find if node exists
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This is exactly what I needed when using XPath in Python with lxml.
– Iain Samuel McLean Elder
Mar 18 '11 at 12:04
1
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What is attr_accessor in Ruby?
...ables cannot be accessed in the x.y form as is common in say, Java or even Python. In Ruby y is always taken as a message to send (or "method to call"). Thus the attr_* methods create wrappers which proxy the instance @variable access through dynamically created methods.
Boilerplate sucks
Hope thi...