I want to check the results of an operation in the Net::FTP Perl module rather than die. Typically you would do: $ftp->put($my_file) or die "Couldn't upload file"; But I want to do something else instead of just dying in this script so I tried: $ftp->put($my_file) or { log("Couldn't upload $my_file"); return(-1); }...
I'm trying to learn Smalltalk by doing, so I'm getting a grip on the syntax and style by buiding a simple "Matrix" class. First of all, I'd be grateful if linked to a good Smalltak tutorial (although this is totally optional), preferably one that doesn't involve using the GUIs (I'd rather type my .sts than fish around the hierarchy expl...
I need to echo a series of elements of an array in PS but provide various delimiters between the elements, so Im using; Add-Content -Path $tempInputDir\testoutput.log -value ($($fields[0]) + " "+ $($fields[1]) + " " + $($fields[2]) + " " + $($fields[3])+ " "+ $($fields[15]) + " " + $($fields[17])) } So I need to be able to add...
I am dissecting some code and came across this, $sql = 'SELECT page.*, author.name AS author, updator.name AS updator ' . 'FROM '.TABLE_PREFIX.'page AS page ' . 'LEFT JOIN '.TABLE_PREFIX.'user AS author ON author.id = page.created_by_id ' . 'LEFT JOIN '.TABLE_PREFIX.'user AS updator ON updator.id = page.updated_by_id ' ...
Is there any mechanism to comment out large blocks of Python code? Right now the only ways I can see of commenting out code are to either start every line with a #, or to enclose the code in """ (triple quotes), except that actually makes it show up in various doc tools. Edit--After reading the answers (and referring to the "duplicate")...
I am trying to initialize an XmlDocument in F#, without polluting the global namespace - my only functional background comes from LISP, where one can create a new scope using "let". I came up with this: let doc = let reader = new XmlTextReader("url") let doc = new XmlDocument() doc.Load(reader) doc I was rather surpri...
I have a simple object that is deserialized from JSON into a server-side object. JSON: { name : 'ObjectName', host : 'http://localhost', ImagesPath : '/Images/' } On the server side, the above JSON code gets deserialized into this C# object via System.Web.Script.Serialization.JavaScriptSeriali...
Hi Guys, Heres a little segment from a script Im writing; Get-Content $tempDir\$todaysLog | Where-Object { $_ -match "" } | ForEach-Object -Process { $fields = [regex]::split($_,'@|\s+') Add-Content -Path $importSource2\$todaysLog -value ($($fields[0]) + "`t" + $($fields[1]) + "`t" + $($fields[2]) + " " + $($fields[3])+ "`...
Can someone explain this method declaration syntax for me? In this function, the number of rows of a UIPickerView (slot machine UI on the iPhone) is being returned. From my understanding, the Method is called 'pickerView', and returns an NSInteger. It passes in a pointer to the UIPickerview called 'pickerView' ... first, why is th...
If curly brackets ('{' and '}') are used in Lua, what are they used for? ...
Hi. Simple question, is this valid C++: class Foo { void Foo::doSomething(); }; The point of the question: is that repeated use of the class name and double colon before the method name valid inside the class declaration? I'm having issues compiling code that does this using g++ 4.2.3. I would love to see a reference to somethin...
I'm looking for a general purpose syntax highling library, to output to html. It's for use within a ruby app, so a ruby library would be good, but an excellent utility which can be piped in and out of would do Also needs to guess the appropriate language to highlightsy by itself ...
I want to write a function that works on any Scala type with a total ordering (i.e. I can use '<' on it). What's the syntax for that? The best I've come up with is def lessThan[T <: Ordered[T]](x: T, Y: T) = x < y That doesn't work, though, when I try using it from the REPL: scala> lessThan(1, 2) <console>:8: error: inferred type a...
I can only assume it's an infinite loop. Can I leave out any of the three expressions in a for loop? Is there a default for each when omitted? ...
After I do the .post thing, I want to hide the first div with a left slide, then show the second with a right slide. My right-slide was working fine and then I went and tried to put in the left slide and I broke it all. if(hasError == false) { $.post("/process-email-signups",{email_address: email_addressVal}, function(data){ ...
I'm trying to figure out which of these parameters contains an uploaded file. This code works params[:upload].each do | uploaded_image | if (uploaded_image[1] != "") # do something with uploaded_image[1]; end end but my way of moving through the parameters (with the [1], for instance) seems wrong. What's the right wa...
I overloaded the [] operator in my class. Is there a nicer way to call this function from within my class other than (*this)[i]? ...
require 'pp' p *1..10 This prints out 1-10. Why is this so concise? And what else can you do with it? ...
Hi all, I noticed this in Joe Hewitt's source for Three20 and I've never seen this particular syntax in Objective-C before. Not even sure how to reference it in an appropriate Google search. From TTTableViewDataSource: + (TTSectionedDataSource*)dataSourceWithObjects:(id)object,... { The "..." is what's throwing me off here. I'm assu...
[1, 2, 3, 4].inject(0) { |result, element| result + element } # => 10 I'm looking at this code but my brain is not registering how the number 10 can become the result. Would someone mind explaining what's happening here? ...