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Check for array not empty: any?
...something or not. This includes things that evaluate to false, such as nil and false.
>> a = []
=> []
>> a.empty?
=> true
>> a = [nil, false]
=> [nil, false]
>> a.empty?
=> false
>> a = [nil]
=> [nil]
>> a.empty?
=> false
The method any? comes ...
How to make code wait while calling asynchronous calls like Ajax [duplicate]
...me propreitory framework..there is load function where page starts loading and before page loads i need to get data and only function i can override is load function...
– thecodejack
Dec 26 '12 at 8:15
...
How do I check if file exists in Makefile so I can delete it?
...
Helps to also understand what $(wildcard pattern) actually does. See link.
– Dr. Dan
Nov 5 '18 at 22:43
1
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Matplotlib make tick labels font size smaller
...overflow.com/a/11386056/42346
The code below is for illustrative purposes and may not necessarily be optimized.
import matplotlib.pyplot as plt
import numpy as np
def xticklabels_example():
fig = plt.figure()
x = np.arange(20)
y1 = np.cos(x)
y2 = (x**2)
y3 = (x**3)
yn = ...
Remove excess whitespace from within a string
...tring from a database query, then I remove all HTML tags, carriage returns and newlines before I put it in a CSV file. Only thing is, I can't find a way to remove the excess white space from between the strings.
...
Is a successor for TeX/LaTeX in sight? [closed]
...ded for the creation of beautiful books". The goal of TeX was typesetting, and its primary concerns were things like "Breaking Paragraphs Into Lines" (Donald E. Knuth and Michael F. Plass, Software--Practice and Experience, Vol. 11, pp. 1119-1184, 1981), ligatures, kerning, beautiful fonts (Knuth wo...
How do I undo a checkout in git?
...to/file
For the entire repository working copy:
git reset --hard HEAD
And if that doesn't work, then you can look in the reflog to find your old head SHA and reset to that:
git reflog
git reset --hard <sha from reflog>
HEAD is a name that always points to the latest commit in your curr...
Command not found error in Bash variable assignment
...d your '=' sign.
When you write:
STR = "foo"
bash tries to run a command named STR with 2 arguments (the strings '=' and 'foo')
When you write:
STR =foo
bash tries to run a command named STR with 1 argument (the string '=foo')
When you write:
STR= foo
bash tries to run the command foo ...
How can I expose more than 1 port with Docker?
... EXPOSE is only documentation for the ports that are published and useful for linking only. A complete list of ports can be found using -P and they will be automatically mapped to an available port on the host.
– Arun Gupta
Oct 20 '15 at 11:01
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WPF Timer Like C# Timer
...ge of making the timer a Control.) If you don't you'll have a memory leak and possibly other bugs.
– Trade-Ideas Philip
Nov 28 '16 at 14:11
8
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