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Remove all special characters except space from a string using JavaScript
I want to remove all special characters except space from a string using JavaScript.
11 Answers
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Saving a Numpy array as an image
...An answer using PIL (just in case it's useful).
given a numpy array "A":
from PIL import Image
im = Image.fromarray(A)
im.save("your_file.jpeg")
you can replace "jpeg" with almost any format you want. More details about the formats here
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Capturing Groups From a Grep RegEx
...pace. It's awkward to escape and you can't use quotes since that forces it from a regex to an ordinary string. The correct way to do it is to use a variable. Quotes can be used during the assignment making things much simpler.
– Paused until further notice.
Oct...
Grasping the Node JS alternative to multithreading
...d correctly Node JS is non blocking...so instead of waiting for a response from a database or other process it moved on to something else and checks back later.
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How to load a tsv file into a Pandas DataFrame?
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Note: As of 17.0 from_csv is discouraged: use pd.read_csv instead
The documentation lists a .from_csv function that appears to do what you want:
DataFrame.from_csv('c:/~/trainSetRel3.txt', sep='\t')
If you have a header, you can pass head...
client secret in OAuth 2.0
...changing zoom and design to fit the app) but there was nothing stopping me from reading values from fields inside the web view with username and password. Therefore I totally agree with your second point and find it a big "bug" in OAuth spec. Point being "App doesn't get access to users credentials"...
How can I do DNS lookups in Python, including referring to /etc/hosts?
...e latter,
import socket
print(socket.gethostbyname('localhost')) # result from hosts file
print(socket.gethostbyname('google.com')) # your os sends out a dns query
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Will using goto leak variables?
... may be prone to this.)
Consider the following mechanics that prevent you from doing "bad things" with labels (which includes case labels).
1. Label scope
You can't jump across functions:
void f() {
int x = 0;
goto lol;
}
int main() {
f();
lol:
return 0;
}
// error: label 'lol' u...
For-each over an array in JavaScript
...rue and omitting the ones where it returns false)
map (creates a new array from the values returned by the callback)
reduce (builds up a value by repeatedly calling the callback, passing in previous values; see the spec for the details; useful for summing the contents of an array and many other thin...
Why is it possible to recover from a StackOverflowError?
...ck that caught it, any object that may be modified by any method reachable from there is now suspect. Usually it is not worthwhile to find out what happened and try to fix it.
– Simon Richter
Mar 2 '14 at 18:42
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