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Javascript sort array by two fields
...ion(a, b){
for(var x in _args){
var ax = a[_args[x].substring(1)];
var bx = b[_args[x].substring(1)];
var cx;
ax = typeof ax == "string" ? ax.toLowerCase() : ax / 1;
bx = typeof bx == "string" ? bx.toLowerCase() : bx / 1;
...
Rails: fields_for with index?
...:namespace] = options[:namespace]
case record_name
when String, Symbol
if nested_attributes_association?(record_name)
return fields_for_with_nested_attributes(record_name, record_object, fields_options, block)
end
else
re...
How to wait for all goroutines to finish without using time.Sleep?
..."sync"
)
func main() {
var wg sync.WaitGroup
var urls = []string{
"http://www.golang.org/",
"http://www.google.com/",
"http://www.somestupidname.com/",
}
for _, url := range urls {
// Increment the WaitG...
How to run `rails generate scaffold` when the model already exists?
...o generate a scaffold script.
it outputs:
rails g scaffold users fname:string lname:string bdate:date email:string encrypted_password:string
from your schema.rb our your renamed schema.rb. Check it
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MySQL - UPDATE query based on SELECT Query
... numbered in a unit, and units are numbered in a level (identified using a string ??N), such that one can identify activities using an SKU ie L1U1A1. Those SKUs are then stored in a different table.
I identified the following to get a list of activity_id vs product_id:-
SELECT a.activity_id, w....
What is Java EE? [duplicate]
...pp servers, like tomcat or websphere, you'd want to use the J2EE, with the extra classes for n-tier support.
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How to write Unicode characters to the console?
...F8;
for (var i = 0; i <= 1000; i++) {
Console.Write(Strings.ChrW(i));
if (i % 50 == 0) { // break every 50 chars
Console.WriteLine();
}
}
Console.ReadKey();
}
}
VB.NET
imports Microsoft.VisualBasic
imports System
...
How can “while (i == i) ;” be a non-infinite loop in a single threaded application?
...udes a step that returns an invalid answer to complete without introducing extra exceptions. To verify the answer is value simply test for non nandness ( is that's word if not I bags it) via Float.isNan() o equivalent.
shar...
How to get last items of a list in Python?
... nine elements from a list (or any other sequence that supports it, like a string) would look like this:
num_list[-9:]
When I see this, I read the part in the brackets as "9th from the end, to the end." (Actually, I abbreviate it mentally as "-9, on")
Explanation:
The full notation is
sequenc...
instantiate a class from a variable in PHP?
... If you work with namespace, put the current namespace into the string: $var = __NAMESPACE__ . '\\' . $var . 'Class';
– bastey
Sep 2 '13 at 13:28
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