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How do I generate random numbers in Dart?
...math library. The nextInt() method requires a max limit. The random number starts from 0 and the max limit itself is exclusive.
import 'dart:math';
Random random = new Random();
int randomNumber = random.nextInt(100); // from 0 upto 99 included
If you want to add the min limit, add the min limit ...
How can I efficiently select a Standard Library container in C++11?
...ly useless at first. The big O considerations only really kick in when you start handling a few thousands (or more) of items.
There are two big categories of containers:
Associative containers: they have a find operation
Simple Sequence containers
and then you can build several adapters on top ...
How to query SOLR for empty fields?
... Beware that this syntax seems to also return rows whose field value starts with a whitespace (in Solr 4.3)
– metatechbe
Mar 4 '15 at 10:29
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Convert hyphens to camel case (camelCase)
...dEf"
input: "--ab-cd-__-ef--", result: "AbCdEf"
Notice that strings that start with delimiters will result in a uppercase letter at the beginning.
If that is not what you would expect, you can always use lcfirst.
Here's my lcfirst if you need it:
function lcfirst(str) {
return str && ...
What does 'super' do in Python?
...r revision history, you want to see precisely what changed when.
You may start off with single inheritance, but if you decide to add another base class, you only have to change the line with the bases - if the bases change in a class you inherit from (say a mixin is added) you'd change nothing in ...
Serializing with Jackson (JSON) - getting “No serializer found”?
... This error fires also when your class has a method with name starting with get... For example NonSerializableClass getMyNonSerializableObject(). Jackson tries to serialise it and fails. To resolve this problem just add @JsonIgnore or rename the method.
– Alexey Po...
Formatting numbers (decimal places, thousands separators, etc) with CSS
...ors) would see this as a genuine developer concern, perhaps the ball could start rolling?
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how to display full stored procedure code?
...s psql is using to retrieve that information (e.g. for the \df command) by starting psql with the --echo-hidden parameter. That will show all queries that are used internally. pg_proc does not store a complete CREATE FUNCTION statement. You can use pg_get_functiondef() to retrieve the complete sour...
Visual Studio refuses to forget breakpoints?
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Start your debug session with a minimal number of files open, as you debug the unwanted breakpoints will show up and the containing files will open in new tabs.
Terminate the debug session and open the breakpoints window (fro...
jQuery post() with serialize and extra data
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Hmm. I think I like this better than my solution :) I may start doing this in the future.
– Michael Mior
Jul 8 '11 at 17:19
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