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Problems installing the devtools package
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How can I install them without root permission?
– anilbey
Jan 8 '18 at 16:03
add a comment
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Django - Difference between import django.conf.settings and import settings
....py) module of your Django project (if you are writing this code from the "root" package of your application, of course)
from django.conf import settings
Will import settings object from django.conf package (Django's provided files). This is important, because
[..] note that your code should ...
SSL Error When installing rubygems, Unable to pull data from 'https://rubygems.org/
...cert_file"
security find-certificate -a -p /System/Library/Keychains/SystemRootCertificates.keychain >> "$cert_file"
The whole code: https://github.com/wayneeseguin/rvm/blob/master/scripts/functions/osx-ssl-certs
For non OSX users
Make sure to update package ca-certificates. (on old syst...
Get the real width and height of an image with JavaScript? (in Safari/Chrome)
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The root problem is that WebKit browsers (Safari and Chrome) load JavaScript and CSS information in parallel. Thus, JavaScript may execute before the styling effects of CSS have been computed, returning the wrong answer. In jQuer...
Why are these numbers not equal?
...is actually checking that the difference between the numbers is the square root of the smallest difference between two mantissas.
This algorithm goes a bit funny near extremely small numbers called denormals, but you don't need to worry about that.
Comparing vectors
The above discussion assumed a...
How to run Node.js as a background process and never die?
... @murvinlai EC2 is an environment and has nothing to do with root privilege. It's probably about the your AMI. For example with Amazon AMI you certainly can sudo bash.
– ShuaiYuan
Apr 2 '13 at 11:41
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In .NET, which loop runs faster, 'for' or 'foreach'?
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However, never forget: "Premature optimization is the root of all evil."
– Oorang
May 29 '09 at 4:53
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Check if Internet Connection Exists with Javascript? [duplicate]
...pRequest )( "Microsoft.XMLHTTP" );
// Open new request as a HEAD to the root hostname with a random param to bust the cache
xhr.open( "HEAD", "//" + window.location.hostname + "/?rand=" + Math.floor((1 + Math.random()) * 0x10000), false );
// Issue request and handle response
try {
xhr...
Value of i for (i == -i && i != 0) to return true in Java
...asier to understand explanation other than in binary (although it is still rooted in that).
Note that Integer.MIN_VALUE is equal to -2^31 or -2147483648 and Integer.MAX_VALUE is equal to 2^31-1 or 2147483647. -Integer.MIN_VALUE is 2^31, which is now too large for an Integer (since it is past MAX_VA...
Creating multiline strings in JavaScript
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@BMiner: 1) "Premature optimization is the root of all evil" - Donald Knuth, and 2) 'readability' is in the eye of the beholder
– Paul Bennett
Mar 25 '14 at 15:27
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