variables

问题 I'm writing documentation for package I've published, and I find the more thorough your documentation, the easier people find your package to use (duh). I'm actually having a lot of fun lovingly writing up all the features and details of my code. However, I'm completely flummoxed by how to write Sphinx-compatible documentation for class-level variables. In particular, I've got some enum classes I'd like to document, but for the life of me I can't figure out a way to attach documentation to

问题 Exploring the difference between help and get-help I did: cd Function: get-content help all the input-parameter are defined like: [string]${Name} $ =initiate a variable, {} a hashtable?? Thanks for your help. 回答1: For the official documentation, see the conceptual about_Variables help topic (invoke it with help about_Variables ), and in particular its "Variable Names that Include Special Characters" section. Enclosing the name of a variable in {...} - e.g. ${foo} - unambiguously delimits the

问题 I'm trying to read from Bash variables for which I know name suffixes, but I want to iterate through the prefixes. I give an example below: var1_name="variable1" var1_size="2" var2_name="variable2" var2_size="3" vars=(var1 var2) for v in "${vars[@]}" do echo $v_name echo $v_size done and I'd want the output to look like follows: variable1 2 variable2 3 Is there any to do this with Bash? I have tried with eval and associative arrays, but I still can't find a way to examine an already defined

问题 Recently I was confused about javascript hoisting behavior and now I got stuck with that. So, there are two examples. var alpha = 'alpha'; var beta = 'beta'; f(); //beta var f = function f1() { console.log(beta); }; function f() { console.log(alpha); } f(); // alpha The first one is working as expected, because the function declaration overwrite our variable f (with value "undefined") when Javascript is set up the Lexical Environment. But the second gives me a push, that I does not understand

问题 Recently I was confused about javascript hoisting behavior and now I got stuck with that. So, there are two examples. var alpha = 'alpha'; var beta = 'beta'; f(); //beta var f = function f1() { console.log(beta); }; function f() { console.log(alpha); } f(); // alpha The first one is working as expected, because the function declaration overwrite our variable f (with value "undefined") when Javascript is set up the Lexical Environment. But the second gives me a push, that I does not understand

问题 I often use variables which are declared in the script scope to avoid problems with functions and their scopes. I am declaring these variables like this: New-Variable -Name test -Option AllScope -Value $null ... or sometimes I switch existing variables like this to use them comprehensively: $script:test = $test When I want to clear them I either use this: Clear-Variable test -Scope Script ... or I simply use this: $test = $null Is there a difference? What should I prefer and why? 回答1: From

问题 I often use variables which are declared in the script scope to avoid problems with functions and their scopes. I am declaring these variables like this: New-Variable -Name test -Option AllScope -Value $null ... or sometimes I switch existing variables like this to use them comprehensively: $script:test = $test When I want to clear them I either use this: Clear-Variable test -Scope Script ... or I simply use this: $test = $null Is there a difference? What should I prefer and why? 回答1: From

问题 A function is returning an anonymous function. I would like to assign the result to a variable. However the compiler thinks that I am trying to assign the function and not the result of the function. How can I resolve this? program Project9; {$APPTYPE CONSOLE} type TMyEvent = reference to function: string; var v1: TMyEvent; function GetHandler: TMyEvent; begin Result := function: string begin Result := ''; end; end; begin v1 := GetHandler; // <- Incompatible types: 'TMyEvent' and 'Procedure'

问题 I have made a small automator script that runs a bash shell script and gets two outputs... On viewing results it appears like this below... I want them in two automator variables Assume I used a script like echo "200" echo "19 hours, 4 minutes and 42.765 seconds" and on viewing the results it shows this (and I want each of these as automator variables called count and duration ). I want it to be sent to a display notification with subtitle as " count files processed" and message as " duration

问题 I have made a small automator script that runs a bash shell script and gets two outputs... On viewing results it appears like this below... I want them in two automator variables Assume I used a script like echo "200" echo "19 hours, 4 minutes and 42.765 seconds" and on viewing the results it shows this (and I want each of these as automator variables called count and duration ). I want it to be sent to a display notification with subtitle as " count files processed" and message as " duration