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How to make connection to Postgres via Node.js
...ailable
var x = 1000;
while (x > 0) {
client.query("INSERT INTO junk(name, a_number) values('Ted',12)");
client.query("INSERT INTO junk(name, a_number) values($1, $2)", ['John', x]);
x = x - 1;
}
var query = client.query("SELECT * FROM junk");
//fired after last row is emitted
quer...
How do I list all the columns in a table?
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For MySQL, use:
DESCRIBE name_of_table;
This also works for Oracle as long as you are using SQL*Plus, or Oracle's SQL Developer.
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How do I remove the Devise route to sign up?
...isn't a straight-forward option. You can either provide a patch
or use :skip => :registerable and add only the routes you want.
The original question was :
Is there any good way to remove a specific route (the delete route)
from Rails?
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How do you build a Singleton in Dart?
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Thanks to Dart's factory constructors, it's easy to build a singleton:
class Singleton {
static final Singleton _singleton = Singleton._internal();
factory Singleton() {
return _singleton;
}
Singleton._internal();
...
What to do Regular expression pattern doesn't match anywhere in string?
...t> tag, then do further processing on that. Note that this will only work if none of the attribute values have a > character in them, so it's not perfect, but it should suffice for sane inputs.
Here's some Perl (pseudo)code to show you what I mean:
my $html = readLargeInputFile();
my @input...
Could not reliably determine the server's fully qualified domain name
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Yes, you should set ServerName:
http://wiki.apache.org/httpd/CouldNotDetermineServerName
http://httpd.apache.org/docs/current/mod/core.html#servername
You can find information on the layouts used by the various httpd distributions here:
http://wiki.apache.org/htt...
Chai: how to test for undefined with 'should' syntax
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This is one of the disadvantages of the should syntax. It works by adding the should property to all objects, but if a return value or variable value is undefined, there isn't a object to hold the property.
The documentation gives some workarounds, for example:
var should = require('...
How do I autoindent in Netbeans?
In eclipse you can click Ctrl + I at any line, and it'll automatically indent the line or group of lines according to the indentation scheme you chose in the settings.
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How do I check if a number is positive or negative in C#?
How do I check if a number is positive or negative in C#?
17 Answers
17
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How do I tokenize a string in C++?
...sed around iterators rather than concrete containers. Unfortunately this makes it hard to provide a Java-like split function in the C++ standard library, even though nobody argues that this would be convenient. But what would its return type be? std::vector<std::basic_string<…>>? Maybe...