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Getting and removing the first character of a string
...ng(x, 1, 1)
## [1] "h"
substring(x, 2)
## [1] "ello stackoverflow"
The idea of having a pop method that both returns a value and has a side effect of updating the data stored in x is very much a concept from object-oriented programming. So rather than defining a pop function to operate on chara...
How to destroy an object?
...t documented on one of the comments from the PHP official manual).
That said, do keep in mind that PHP always destroys the objects as soon as the page is served. So this should only be needed on really long loops and/or heavy intensive pages.
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How to update bower.json with installed packages?
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The dependencies that not has declared in bower.json are identified by "extraneous" tag on console.
– otaviodecampos
Jan 18 '18 at 13:52
add a comment
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What is an SDL renderer?
...Rect* dstrect)
Where you want to render the texture in the window. If the width and height of this SDL_Rect is smaller or larger than the dimensions of the texture itself, the texture will be stretched according to this SDL_Rect
SDL_RenderPresent(renderer);
The other SDL_Render* functions draws t...
WPF Button with Image
...ckPanel and add the image as content of the button to get this working. I didn't test it, but maybe this is the way to go if one wants an image and the text.
– Onsokumaru
Dec 6 '19 at 14:05
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Python integer division yields float
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Yeah I did some more digging and found that out as well. However I would imagine a decent size number of people do not realize this depending on the language they come from.
– mschuett
Mar 26 '1...
SQL Server NOLOCK and joins
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@InSane: Where did you get this info from? It seems to go against the accepted answer.
– Jay Sullivan
Dec 23 '13 at 15:53
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How to get equal width of input and select fields
.... These elements are vertically aligned. Unfortunately, I can't get equal width of these elements.
4 Answers
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What does (function($) {})(jQuery); mean?
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( function(){} ) means returns the inside function ? What exactly the "()" means?
– Jaskey
Feb 2 '15 at 5:37
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Scatter plot and Color mapping in Python
...re "jet_r" or cm.plasma_r. Here's an example with the new 1.5 colormap viridis:
import numpy as np
import matplotlib.pyplot as plt
x = np.arange(100)
y = x
t = x
fig, (ax1, ax2) = plt.subplots(1, 2)
ax1.scatter(x, y, c=t, cmap='viridis')
ax2.scatter(x, y, c=t, cmap='viridis_r')
plt.show()
Col...