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Collisions when generating UUIDs in JavaScript?
...rom Math.random(). For some browsers the entropy is as low as just 41 bits all together. Calling Math.random() multiple times won't raise the entropy. If you really want unique v4 UUIDs you need to use a cryptographically strong RNG that produces at least 122bit entropy per UUID generated.
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How to get milliseconds from LocalDateTime in Java 8
...
Sure, if all you need is seconds, not milliseconds.
– Stuart Marks
May 30 '14 at 17:23
1
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How to get a dependency tree for an artifact?
.../jboss/shrinkwrap/descriptors/shrinkwrap-descriptors-parent/2.0.0-alpha-10/api-base of .../descriptors-parent/2.0.0-alpha-10/shrinkwrap-descriptors-parent-2.0.0-alpha-10.pom does not exist ```
– Ding-Yi Chen
Nov 21 '16 at 0:24
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How do I get a Date without time in Java?
...e much clearer if you're able to use types which represent what you're actually trying to do.
There are many, many other reasons to use Joda Time or java.time instead of the built-in java.util types - they're generally far better APIs. You can always convert to/from a java.util.Date at the boundari...
How to process each line received as a result of grep command
...ead loop, that will be fed by the result of the grep command using the so called process substitution:
while IFS= read -r result
do
#whatever with value $result
done < <(grep "xyz" abc.txt)
This way, you don't have to store the result in a variable, but directly "inject" its output to t...
Using socket.io in Express 4 and express-generator's /bin/www
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A little different approach to initiate socket.io, it groups all related code in one place:
bin/www
/**
* Socket.io
*/
var socketApi = require('../socketApi');
var io = socketApi.io;
io.attach(server);
socketApi.js
var socket_io = require('socket.io');
var io = socket_io();
var ...
Why do all browsers' user agents start with “Mozilla/”?
All popular browsers' user agent strings, even Internet Explorer's, start with Mozilla/ . Why is this the case?
6 Answers
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Is there a way to make AngularJS load partials in the beginning and not at when needed?
...cs.angularjs.org/api/ng.directive:script) to put your partials in the initially loaded HTML
You could also fill in $templateCache (http://docs.angularjs.org/api/ng.$templateCache) from JavaScript if needed (possibly based on result of $http call)
If you would like to use method (2) to fill in $tem...
Why Java needs Serializable interface?
...specify Serializable tag on every object we use is kind of a burden. Especially when it's a 3rd-party class that we can't really change.
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In Java, when should I create a checked exception, and when should it be a runtime exception? [dupli
... job, I find that there are many who are for Runtime exceptions in many or all cases.
Here's what I think: Using CheckedExceptions, I am forced at compile time to at least acknowledge the exception in the caller. With Runtime exceptions, I am not forced to by the compiler, but can write a unit te...