Recent questions tagged Syntax

0 votes

465 views

1 answer

syntax - In Java, how do I access the outer class when I'm not in the inner class?

If I have an instance of an inner class, how can I access the outer class from code that is not in the inner ... { return Outer.this; } } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

570 views

1 answer

syntax - C# using numbers in an enum

This is a valid enum public enum myEnum { a= 1, b= 2, c= 3, d= 4, e= 5, f= 6, g= 7, ... populate dropdowns from enums so it would be quite handy See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

414 views

1 answer

syntax - Is it bad practice to comment out single lines of CSS with //?

I have recently started using // to "comment" out single lines of CSS code. I understand that I am not ... it likely to cause me problems? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

828 views

1 answer

syntax - Dot Operator in Haskell: need more explanation

I'm trying to understand what the dot operator is doing in this Haskell code: sumEuler = sum . (map euler) . ... sum . (map euler) . mkList See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

704 views

1 answer

syntax - What characters are permitted for Haskell operators?

Is there a complete list of allowed characters somewhere, or a rule that determines what can be used in an identifier vs an operator? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

616 views

1 answer

syntax - Get Insert Statement for existing row in MySQL

Using MySQL I can run the query: SHOW CREATE TABLE MyTable; And it will return the create table statement for the ... value','2010-10-20'); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

711 views

1 answer

syntax highlighting - Copy Notepad++ text with formatting?

I'm using Notepad++ to write code. How do I copy code in Notepad++ along with its formatting to paste into ... (i.e. syntax highlights, etc) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

845 views

1 answer

syntax - How to suppress variable substitution in bash heredocs

Is it possible to create a heredoc that does not become subject to variable expansion? e.g. cat <<-EOF > ... tedious to escape all of them. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

553 views

1 answer

syntax - Python: Make class iterable

I have inherited a project with many large classes constituent of nothing but class objects (integers, strings, etc). I' ... .. print(x) bar baz See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

578 views

1 answer

syntax - Why does one select Scala type members with a hash instead of a dot?

In Scala, the syntax for selecting a type from a class is different from that of selecting anything else from a ... example:Example.Foo = "1" See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

461 views

1 answer

syntax - Where does the excerpt in the git diff hunk header come from?

When I use git diff on a C# file, I see something like this: diff --git a/foo.cs b/foo.cs index ff61664.. ... ? Is there a way to customize it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

705 views

1 answer

syntax - Nested dictionary comprehension python

I'm having trouble understanding nested dictionary comprehensions in Python 3. The result I'm getting from the example below ... ...}, ...} See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

517 views

1 answer

syntax for single row MERGE / upsert in SQL Server

I'm trying to do a single row insert/update on a table but all the examples out there are for sets. Can anyone fix ... VALUES (0, 110, 'test'); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

517 views

1 answer

syntax - Objective-C: @class Directive before @interface?

What is the difference between these two class declarations? I don't understand why @class is utilized here. Thanks ... ; UIImage *image2; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

574 views

1 answer

syntax - How can I split a shell command over multiple lines when using an IF statement?

How can I split a command over multiple lines in the shell, when the command is part of an if statement? ... and similar issues in the future? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

512 views

1 answer

syntax - What does the `forall` keyword in Haskell/GHC do?

I'm beginning to understand how the forall keyword is used in so-called "existential types" like this: data ShowBox ... it in a type signature. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

702 views

1 answer

syntax - Is the last comma in C enum required?

Is the last comma required in a C enum declaration? i.e. is the comma after VAL3 required? enum { Val1, ... effects of leaving it in/out Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

682 views

1 answer

syntax - F# forward type declarations

I stumbled across this problem in F#. Suppose, I want to declare two types that reference each other: type ... does not generate an error? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

449 views

1 answer

syntax - Unicode Identifiers and Source Code in C++11?

I find in the new C++ Standard 2.11 Identifiers [lex.name] identifier: identifier-nondigit identifier identifier- ... . What do you think? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

605 views

1 answer

syntax - Python - is there a "don't care" symbol for tuple assignments?

Given a string "VAR=value" I want to split it (only) at the first '=' sign (< value > may contain more ... , I'm targetting Python v 2.6 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

560 views

1 answer

syntax - What is the purpose of the colon before a block in Python?

What is the purpose of the colon before a block in Python? Example: if n == 0: print "The end" See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

517 views

1 answer

syntax - Why does python use two underscores for certain things?

I'm fairly new to actual programming languages, and Python is my first one. I know my way around Linux a bit ... , feel free to start rambling. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

636 views

1 answer

syntax - Parenthesis surrounding return values in C

Quite often in ANSI C code I can see parenthesis sorrounding a single return value. Like this:- int foo(int x) ... can see no reason for that. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

495 views

1 answer

syntax - In a C function declaration, what does "..." as the last parameter do?

Often I see a function declared like this: void Feeder(char *buff, ...) what does "..." mean? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

865 views

1 answer

syntax - How to select all leaf nodes using XPath expression?

I believe it's possible but couldn't figure out the syntax. Something like this: xmlNode.SelectNodes("//*[count( ... ) but this is not correct. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

912 views

1 answer

syntax - Kotlin asterisk operator before variable name or Spread Operator in Kotlin

I want to know what exactly an asterisk does before a variable name in Kotlin. I saw this (*args) in a ... Application::class.java, *args) } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

524 views

1 answer

syntax - Commenting in a Bash script inside a multiline command

How can I comment on each line of the following lines from a script? cat ${MYSQLDUMP} | sed '1d' | tr ... found Is it possible to comment here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

547 views

1 answer

syntax - Powershell color formatting with format operator

I'm using a format operator inside a script with a following example: $current = 1 $total = 1250 $userCN = " ... Write-Host in the first place. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Just Browsing Browsing

Most popular tags