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How to map with index in Ruby?
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Here are two more options for 1.8.6 (or 1.9) without using enumerator:
# Fun with functional
arr = ('a'..'g').to_a
arr.zip( (2..(arr.length+2)).to_a )
#=> [["a", 2], ["b", 3], ["c", 4], ["d", 5], ["e", 6], ["f", 7], ["g", 8]]
# The simplest
n = 1
arr.map{ |c| [c, n+=1 ] }
#=> [["a", 2], ["b...
Import and Export Excel - What is the best library? [closed]
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"Save as"? No. If the customer is using Excel, then why should they save off a second, much more limited file to interact with your product?
– mlibby
Feb 17 '11 at 15:33
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Best way to run scheduled tasks [closed]
...r a website are kept within the website and called from a special page. I then wrote a simple Windows service which calls this page every so often. Once the page runs it returns a value. If I know there is more work to be done, I run the page again, right away, otherwise I run it in a little whil...
Using ConfigurationManager to load config from an arbitrary location
...ss component that will be used in a website that contains a mix of classic ASP and ASP.NET pages, and need a good way to manage its configuration settings.
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Change the selected value of a drop-down list with jQuery
...now the ID will be the ID you specified. You have to be careful if you're then putting that control in a repeater though. msdn.microsoft.com/en-us/library/…
– Shawson
Sep 24 '12 at 9:16
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Return multiple values in JavaScript?
...function getValues() {
return [getFirstValue(), getSecondValue()];
}
Then you can access them like so:
var values = getValues();
var first = values[0];
var second = values[1];
With the latest ECMAScript 6 syntax*, you can also destructure the return value more intuitively:
const [first, se...
Why am I seeing an “origin is not allowed by Access-Control-Allow-Origin” error here? [duplicate]
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If I understand this correctly, then the server of the API or remote resource (in this case the YouTube server) must set the header, i.e. it is the API hoster who must set this header, and not the API caller.
– 0x4a6f4672
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Short circuit Array.forEach like calling break
...for objects as well. With objects, you can do Object.entries(myObject) and then use it exactly like you use the for..in for the array. Note that JS arrays are basically objects under the hood: blog.niftysnippets.org/2011/01/myth-of-arrays.html
– Andrew
Oct 25 '...
JQuery to check for duplicate ids in a DOM
...add a class of error so it will have red text:
// waits for document load then highlights any duplicate element id's
$(function(){ highlight_duplicates();});
function highlight_duplicates() {
// add errors when duplicate element id's exist
$('[id]').each(function(){ // iterate all id's on the ...
Microsoft CDN for jQuery or Google CDN? [closed]
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if we keep thinking that way then only bigger will get to breath. Don't just use google because it's google and assume everyone is with them(no doubt most are with them). But let best win, compare result and go with them.
– mamu
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