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How to get the difference between two arrays of objects in JavaScript
...e or false value.) In this case, if we separate out the notion of testing for equality from the rest of the code by requiring the user to pass the equality check as a function, we can make a straightforward generic algorithm.
– Scott Sauyet
Feb 24 '14 at 14:29...
What's the difference between EscapeUriString and EscapeDataString?
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Use EscapeDataString always (for more info about why, see Livven's answer below)
Edit: removed dead link to how the two differ on encoding
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What is the best way to implement nested dictionaries?
...ns county', 'salesmen'): 36}
Here's our usage code:
vividict = Vividict()
for (state, county, occupation), number in data.items():
vividict[state][county][occupation] = number
And now:
>>> import pprint
>>> pprint.pprint(vividict, width=40)
{'new jersey': {'mercer county': {'...
How do I spool to a CSV formatted file using SQLPLUS?
I want to extract some queries to a CSV output format. Unfortunately, I can't use any fancy SQL client or any language to do it. I must use SQLPLUS.
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How to start nginx via different port(other than 80)
...sudo service nginx start
You may now access your application on port 81 (for localhost, http://localhost:81).
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MySQL Great Circle Distance (Haversine formula)
...ude/longitude of that row and the target latitude/longitude, and then asks for only rows where the distance value is less than 25, orders the whole query by distance, and limits it to 20 results. To search by kilometers instead of miles, replace 3959 with 6371.
SELECT id, ( 3959 * acos( cos( radi...
Alternative to google finance api [closed]
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Updating answer a bit
1. Try Alpha Vantage API
For beginners you can try to get a JSON output from query such as
https://www.alphavantage.co/query?function=TIME_SERIES_DAILY&symbol=MSFT&apikey=demo
DON'T Try Yahoo Finance API (it is DEPRECATED or UNAVAILABLE N...
Why should Java ThreadLocal variables be static
I was reading the JavaDoc for Threadlocal here
7 Answers
7
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What is the use of the JavaScript 'bind' method?
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Bind creates a new function that will force the this inside the function to be the parameter passed to bind().
Here's an example that shows how to use bind to pass a member method around that has the correct this:
var myButton = {
content: 'OK',
click() {
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Python: print a generator expression?
...o having [] brackets around it. So yeah, you can do
>>> list((x for x in string.letters if x in (y for y in "BigMan on campus")))
But you can just as well do
>>> [x for x in string.letters if x in (y for y in "BigMan on campus")]
Yes, that will turn the generator expression ...