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Boolean operators && and ||
...hat either process larger objects or have mathematical operations that are more complex.
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Difference between two DateTimes C#?
...s to do what you need, i.e.
duration.TotalSeconds
duration.TotalMinutes
More info can be found here.
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Rails: What's a good way to validate links (URLs)?
...st
rescue URI::InvalidURIError
false
end
You can even decide to make it more restrictive. For instance, if you want the URL to be an HTTP/HTTPS URL, then you can make the validation more accurate.
require 'uri'
def valid_url?(url)
uri = URI.parse(url)
uri.is_a?(URI::HTTP) && !uri.hos...
Remove new lines from string and replace with one empty space
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A few comments on the accepted answer:
The + means "1 or more". I don't think you need to repeat \s. I think you can simply write '/\s+/'.
Also, if you want to remove whitespace first and last in the string, add trim.
With these modifications, the code would be:
$string = preg_r...
How to force maven update?
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I believe this is more complicated if you were using artifactory and used the repository id "central", because the metadata doesn't apparently get cleaned out.
– ggb667
May 12 '14 at 20:45
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How to color the Git console?
...s is explained in-depth in git help config.
So basically it's easier and more future proof than setting the different color.* settings separately.
In-depth explanation from the git config documentation:
color.ui: This variable determines the default value for variables such as color.diff and ...
What is code coverage and how do YOU measure it?
...ode-coverage doesn't mean your code is perfect. Use it as a guide to write more comprehensive (unit-)tests.
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Objective-C: Where to remove observer for NSNotification?
...notification. For this... See above.
Edit (since the answer seems to draw more comments than I would have thought) All I am trying to say here is: it's really hard to give general advice as to when it's best to remove the observer from the notification center, because that depends:
On your use ca...
How do I install package.json dependencies in the current directory using npm
... ./node_modules relative to your package.json file (it's actually slightly more complex than this, so check the npm docs here).
You are free to move the node_modules dir to the parent dir of your app if you want, because node's 'require' mechanism understands this. However, if you want to update yo...
Simulator error FBSSystemServiceDomain code 4
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