Concatenate multiple IEnumerable
Use SelectMany: public static IEnumerable<T> Concatenate<T>(params IEnumerable<T>[] lists) { return lists.SelectMany(x => x); }
concatenation
Concat all column values in sql
In SQL Server: SELECT col1 AS [text()] FROM foo FOR XML PATH (”) In MySQL: SELECT GROUP_CONCAT(col1 SEPARATOR ”) FROM foo In PostgreSQL: SELECT array_to_string ( ARRAY ( SELECT col1 FROM foo ), ” ) In Oracle: SELECT * FROM ( SELECT col1, ROW_NUMBER() OVER(ORDER BY 1) AS rn FROM foo MODEL DIMENSION BY (rn) … Read more
Concatenate two Func delegates
And: Func<Order, bool> predicate3 = order => predicate1(order) && predicate2(order); Or: Func<Order, bool> predicate3 = order => predicate1(order) || predicate2(order);
Gulp.js event stream merge order
Try streamqueue. var streamqueue = require(‘streamqueue’); gulp.task(‘css’, function () { return streamqueue({ objectMode: true }, gulp.src([‘dev/css/reset.css’, ‘dev/css/style.css’, ‘dev/css/typography.css’, ‘dev/css/sizes.css’]), gulp.src([‘dev/css/*.scss’]).pipe(sass()) ) .pipe(concat(‘main.css’)) .pipe(minifyCSS()) .pipe(gulp.dest(‘build/css’)) }); This cheatsheet will help you. PDF is here.
Python – How to concatenate to a string in a for loop? [duplicate]
That’s not how you do it. >>> ”.join([‘first’, ‘second’, ‘other’]) ‘firstsecondother’ is what you want. If you do it in a for loop, it’s going to be inefficient as string “addition”/concatenation doesn’t scale well (but of course it’s possible): >>> mylist = [‘first’, ‘second’, ‘other’] >>> s = “” >>> for item in mylist: … … Read more
Union in more than 2 pandas dataframe
If I understand well the issue, you are looking for the concat function. pandas.concat([df1, df2, df3, df4]) should work correctly if the column names are the same for both dataframes.
Ms Access Query: Concatenating Rows through a query
You need a function to do the concatenation. Microsoft Access condense multiple lines in a table Example using your data: Select T.ColumnA , GetList(“Select ColumnB From Table1 As T1 Where T1.ColumnA = ” & [T].[ColumnA],””,”, “) AS ColumnBItems From Table1 AS T Group By T.ColumnA;
Concatenate in jQuery Selector
There is nothing wrong with syntax of $(‘#part’ + number).html(text); jQuery accepts a String (usually a CSS Selector) or a DOM Node as parameter to create a jQuery Object. In your case you should pass a String to $() that is $(<a string>) Make sure you have access to the variables number and text. To … Read more
Does C++11 offer a better way to concatenate strings on the fly?
C++11 introduces to_string() functions: my_func(“bla bla bla” + to_string(my_int) + “bla bla bla”);