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How to make connection to Postgres via Node.js
... executed one after another once the connection becomes available
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("SEL...
How to get a specific version of a file in Mercurial?
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answered Jan 21 '10 at 14:32
djcdjc
10.6k44 gold badges3535 silver badges4747 bronze badges
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ASP.NET MVC How to convert ModelState errors to json
...te
where item.Value.Errors.Any()
select item.Value.Errors[0].ErrorMessage).ToList();
EDIT: You can extract multiple errors into separate list items by adding a from clause, like this:
var errorList = (from item in ModelState.Values
from error in item.Errors
select...
Select elements by attribute
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190
Do you mean can you select them? If so, then yes:
$(":checkbox[myattr]")
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Logical operator in a handlebars.js {{#if}} conditional
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edited Jun 10 '13 at 18:24
Peter Bratton
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Ruby custom error classes: inheritance of the message attribute
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StefanStefan
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How should one use std::optional?
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edited May 11 '15 at 8:00
thecoshman
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answered...
Does Python support multithreading? Can it speed up execution time?
... Pieters♦Martijn Pieters
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Check if $_POST exists
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answered Aug 16 '10 at 20:29
ehmadehmad
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Move capture in lambda
...ariables can be initialized with anything like so:
auto lambda = [value = 0] mutable { return ++value; };
In C++11 this is not possible yet, but with some tricks that involve helper types. Fortunately, the Clang 3.4 compiler already implements this awesome feature. The compiler will be released D...