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Conventions for exceptions or error codes
...n that can be thrown by every line in my function to know what it will do (Read The Exception That Grounded an Airline to get an idea of how tricky this is). It's tedious and hard to write code that reacts appropriately to every situation (including the unhappy ones), but that's because writing erro...
AngularJS: Understanding design pattern
... Model as for Presentation Model design pattern.
Scope
Treat scope as read-only in templates and write-only in controllers. The purpose of the scope is to refer to model, not to be the model.
When doing bidirectional binding (ng-model) make sure you don't bind directly to the scope properties....
Pickle or json?
...r using cPickle (or pickle) based on your premises over JSON. When I first read your answer I thought the reason might have been speed, but since this is not the case... :)
– mac
Oct 4 '12 at 17:54
...
How to create a CPU spike with a bash command
...if=/dev/zero of=/dev/null | dd if=/dev/zero of=/dev/null & }; fulload; read; killall dd
Repeat the command in the curly brackets as many times as the number of threads you want to produce (here 4 threads).
Simple enter hit will stop it (just make sure no other dd is running on this user or yo...
Are there any SHA-256 javascript implementations that are generally considered trustworthy?
...
I agree with @NickBrunt . It is better if the attacker reads a random hash string that may fit only with this particular app rather than the original password that may be used in several places.
– Aebsubis
May 28 '14 at 15:16
...
Find and Replace Inside a Text File from a Bash Command
...u really really want to use just bash, then the following can work:
while read a; do
echo ${a//abc/XYZ}
done < /tmp/file.txt > /tmp/file.txt.t
mv /tmp/file.txt{.t,}
This loops over each line, doing a substitution, and writing to a temporary file (don't want to clobber the input). The m...
How to find keys of a hash?
...
# OUTPUT
# > a 1
# > b 2
# > ["a", "b"]
However, since ECMA5 already added Object.keys you might as well use:
Object.defineProperty(Object.prototype, 'keys', {
value: function keys() {
return Object.keys(this);
},
enumerable: false
});
Original answer
Object.prototype.keys ...
Jquery live() vs delegate() [duplicate]
I've read some posts here and elsewhere on the web about the differences between live() and delegate() . However I haven't found the answer I'm looking for (if this is a dupe please tell me).
...
list.clear() vs list = new ArrayList(); [duplicate]
...il the old ArrayList is garbage-collected.
– Matthew Read
Apr 11 '15 at 17:52
@RMT : Answer sounds unarguable.
...
Trying to SSH into an Amazon Ec2 instance - permission error
...s
command if needed: chmod 400 mykey.pem
400 protects it by making it read only and only for the owner.
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