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Rails: create on has_one association
Hi (huge Rails newbie here), I have the following models:
4 Answers
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Using .otf fonts on web browsers
I'm working on a website that requires font trials online, the fonts I have are all .otf
2 Answers
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Vim Insert Mode on Mac OS X
Apparently Mac keyboards don't have an Insert key (or maybe they do but I can't find it). How can I get to insert mode in vim on a Mac?
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Return first match of Ruby regex
I'm looking for a way to perform a regex match on a string in Ruby and have it short-circuit on the first match.
5 Answers
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Rails.env vs RAILS_ENV
I see both in examples when checking what env one is running in. What's preferred? Are they, for all intents and purposes equal?
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Adding a y-axis label to secondary y-axis in matplotlib
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The best way is to interact with the axes object directly
import numpy as np
import matplotlib.pyplot as plt
x = np.arange(0, 10, 0.1)
y1 = 0.05 * x**2
y2 = -1 *y1
fig, ax1 = plt.subplots()
ax2 = ax1.twinx()
ax1.plot(x, y1, 'g-')
ax2.plot(x, y2, 'b-')
ax1.set_xlabel('X data')
ax1....
The role of #ifdef and #ifndef
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Text inside an ifdef/endif or ifndef/endif pair will be left in or removed by the pre-processor depending on the condition. ifdef m>me m>ans "if the following is defined" while ifndef m>me m>ans "if the following is not defined".
So:
#define one 0
#ifdef one
printf("one is defined ");
#endif
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Force point (“.”) as decimal separator in java
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Use the overload of String.format which lets you specify the locale:
return String.format(Locale.ROOT, "%.2f", som>me m>Double);
If you're only formatting a number - as you are here - then using NumberFormat would probably be more appropriate. But if you ne...
Run a callback only if an attribute has changed in Rails
I have the following association in my app:
3 Answers
3
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github markdown colspan
Is there a way to have ' colspan ' on github markdown ?
5 Answers
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