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Ruby on Rails: How do you add add zeros in front of a number if it's under 10?
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Did you mean sprintf '%02d', n?
irb(main):003:0> sprintf '%02d', 1
=> "01"
irb(main):004:0> sprintf '%02d', 10
=> "10"
You might want to reference the format table for sprintf in the future, but for this particular example '%02d' means to print an integer (d)...
How to change indentation mode in Atom?
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See Soft Tabs and Tab Length under Settings > Editor Settings.
To toggle indentation modes quickly you can use Ctrl-Shift-P and search for Editor: Toggle Soft Tabs.
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git merge: apply changes to code that moved to a different file
... bunch of patch files for the whole history. But I guess git show SHA1 > diff.patch will work just as well.
– asmeurer
Aug 16 '10 at 17:29
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Accessing private member variables from prototype-defined functions
...via reflection, but are usually strongly obscured. Which all goes to strengthen my final point, "I don't understand why JS developers try SO hard to make fields truly private."
– Scott Rippey
May 26 '15 at 18:42
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Is there a way to select sibling nodes?
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Quick:
var siblings = n => [...n.parentElement.children].filter(c=>c!=n)
https://codepen.io/anon/pen/LLoyrP?editors=1011
Get the parent's children as an array, filter out this element.
Edit:
And to filter out text nodes (Thanks pmrotule):
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What are the use cases for selecting CHAR over VARCHAR in SQL?
...was pointed out by Gaven in the comments: Things change when it comes to multi-byte characters sets, and is a is case where VARCHAR becomes a much better choice.
A note about the declared length of the VARCHAR: Because it stores the length of the actual content, then you don't waste unused length. S...
Get Slightly Lighter and Darker Color from UIColor
... lighterColor(removeSaturation val: CGFloat, resultAlpha alpha: CGFloat) -> UIColor {
var h: CGFloat = 0, s: CGFloat = 0
var b: CGFloat = 0, a: CGFloat = 0
guard getHue(&h, saturation: &s, brightness: &b, alpha: &a)
else {return self}
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time.sleep — sleeps thread or process?
...def run():
worker().start()
waiter().start()
Which will print:
>>> thread_test.run()
0
100
>>> 1
2
3
4
5
101
6
7
8
9
10
102
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How can I remove an element from a list, with lodash?
... working on any Collection
obj.subTopics = _.reject(obj.subTopics, (o) => {
return o.number >= 32;
});
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Best way to do nested case statement logic in SQL Server
.../01/31')+1 as DaysOld,
case when datediff(dd,Invdate,'2009/01/31')+1 >150 then 6 else
case when datediff(dd,Invdate,'2009/01/31')+1 >120 then 5 else
case when datediff(dd,Invdate,'2009/01/31')+1 >90 then 4 else
case when datediff(dd,Invdate,'2009/0...