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Prototypical inheritance - writing up [duplicate]
.... This is called the prototype chain. The prototype part of inheritance is done by lengthening this chain; for example bob => Employee.prototype => Person.prototype => Object.prototype (more on inheritance later).
Even though bob, ben and all other created Person instances share walk the f...
How do I create a dictionary with keys from a list and values defaulting to (say) zero? [duplicate]
...omment into your actual answer. Also, from Python 2.7 and Python 3 you can do {el:0 for el in a}. (Feel free to add that into your answer as well.)
– Zooba
Oct 6 '10 at 4:37
a...
How do I stop Chrome from yellowing my site's input boxes?
...
Heh...yes, thank you, though I suppose I do still need to check in Chrome, right?
– Dave Rutledge
Oct 7 '08 at 14:23
2
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How do I change Eclipse to use spaces instead of tabs?
By default Eclipse indents with a hard tab character. How do I change it to spaces?
21 Answers
...
How do I add a class to a given element?
... <img ... id="image1" name="image1" />
</div>
Then
var d = document.getElementById("div1");
d.className += " otherclass";
Note the space before otherclass. It's important to include the space otherwise it compromises existing classes that come before it in the class list.
See als...
How to determine SSL cert expiration date from a PEM encoded certificate?
...
If you just want to know whether the certificate has expired (or will do so within the next N seconds), the -checkend <seconds> option to openssl x509 will tell you:
if openssl x509 -checkend 86400 -noout -in file.pem
then
echo "Certificate is good for another day!"
else
echo "Certif...
How do I read the first line of a file using cat?
How do I read the first line of a file using cat ?
10 Answers
10
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How do I find the authoritative name-server for a domain name?
...
You'll want the SOA (Start of Authority) record for a given domain name, and this is how you accomplish it using the universally available nslookup command line tool:
command line> nslookup
> set querytype=soa
> stackoverflow.com
Server: 217.30.180.230
Address: ...
Ruby on Rails: how do I sort with two columns using ActiveRecord?
...
To stop joins from randomly breaking with "ambiguous column" messages, you should use the following more robust version: :order => ["DATE(#{table_name}.updated_at)", :price] (Note that :price is a symbol.)
– Jo Liss
...
When would I need a SecureString in .NET?
... support for it. Possibly even pull it in the future - https://github.com/dotnet/apireviews/tree/master/2015-07-14-securestring .
We should remove encryption from SecureString across all platforms in .NET Core - We should obsolete SecureString - We probably shouldn't expose SecureString in...