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Reading a file line by line in Go
...tion into your own function which calls ReadLine in a for-loop.
bufio.ReadString('\n') isn't fully equivalent to ReadLine because ReadString is unable to handle the case when the last line of a file does not end with the newline character.
...
List to array conversion to use ravel() function
... wanted a way to do this without using an extra module. First turn list to string, then append to an array:
dataset_list = ''.join(input_list)
dataset_array = []
for item in dataset_list.split(';'): # comma, or other
dataset_array.append(item)
...
C/C++ macro string concatenation
...
If they're both strings you can just do:
#define STR3 STR1 STR2
The preprocessor automatically concatenates adjacent strings.
EDIT:
As noted below, it's not the preprocessor but the compiler that does the concatenation.
...
File Upload ASP.NET MVC 3.0
... Another point is you can replace the controller and action names (strings) in the Html.BeginForm() call like so: Html.BeginForm(null, null, FormMethod.Post, new { enctype = "multipart/form-data" }). This is useful if it is a partial view that is called from multiple parent views (or similar...
Why use the INCLUDE clause when creating an index?
...erts/deletes require the index to be updated/sorted anyway and thus little extra overhead is associated with storing off a few extra columns while already updating the index. The overhead is the extra memory and CPU used to store redundant info on the index.
If the columns you consider to add as in...
Fastest way(s) to move the cursor on a terminal command line?
... command, but replace option25. To modify the last ./cmd command, use the !string syntax: !./cmd:s/--option25/--newoption/
Any delimiter may be used in place of / in the substitution.
If editing the previous line, you can use quick substitution: ^--option25^--newoption
Character search. This was men...
Using Linq to get the last N elements of a collection?
...d as an extension method, you aren't required to use it that way:
List<string> mystring = new List<string>() { "one", "two", "three" };
mystring = Enumerable.Reverse(mystring).Take(2).Reverse().ToList();
share...
How to get the text node of an element?
... possible iterations. Comparing two small numbers is better than comparing strings of various lengths (time and space considerations). The correct question to ask in this situation is "what kind / type of node do I have?", and not "what name do I have?" developer.mozilla.org/en-US/docs/Web/API/Node/...
SparseArray vs HashMap
...his is a supplemental answer for that.
Create a SparseArray
SparseArray<String> sparseArray = new SparseArray<>();
A SparseArray maps integers to some Object, so you could replace String in the example above with any other Object. If you are mapping integers to integers then use SparseI...
Accessing an SQLite Database in Swift
...autoincrement, name text)", nil, nil, nil) != SQLITE_OK {
let errmsg = String(cString: sqlite3_errmsg(db)!)
print("error creating table: \(errmsg)")
}
Use sqlite3_prepare_v2 to prepare SQL with ? placeholder to which we'll bind value.
var statement: OpaquePointer?
if sqlite3_prepare_v2(db...