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In C++, is it still bad practice to return a vector from a function?
...ere are times it makes sense to pass around collection-like objects (e.g., strings) but for the example cited, I'd consider passing or returning the vector a poor idea.
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Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?
...gle command for which the manual states:
command must be either a command string that is completely parsable by the server (i.e., it contains no psql-specific features), or a single backslash command. Thus you cannot mix SQL and psql meta-commands within a -c option.
Workaround from within Postgre...
How do you mock out the file system in C# for unit testing?
...o it by creating an interface:
interface IFileSystem {
bool FileExists(string fileName);
DateTime GetCreationDate(string fileName);
}
and creating a 'real' implementation which uses
System.IO.File.Exists() etc. You can then mock this interface using a
mocking framework; I recommend Moq.
Edi...
How to print struct variables in console?
...nique:
type Response2 struct {
Page int `json:"page"`
Fruits []string `json:"fruits"`
}
res2D := &Response2{
Page: 1,
Fruits: []string{"apple", "peach", "pear"}}
res2B, _ := json.Marshal(res2D)
fmt.Println(string(res2B))
That would print:
{"page":1,"fruits":["apple","pe...
Returning a C string from a function
I am trying to return a C string from a function, but it's not working. Here is my code.
14 Answers
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How to access object attribute given string corresponding to name of that attribute
...this and say i have a dataframe df1,and a variable x = 'df1' i.e. df1 as a string in var x. i want to print the shape of df like this, getattr(x, 'shape') or getattr('df1', 'shape'). I know this cannot be done with getattr, any other methods.
– ihightower
Feb 1...
“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...a number being inserted into a varchar or text field, but inserting a text string into a field with a numeric data type would result in bad data.
– codewaggle
Dec 18 '12 at 11:02
2...
Should flux stores, or actions (or both) touch external services?
...truth.
In every Flux implementation I've seen Actions are basically event strings turned into objects, like traditionally you'd have an event named "anchor:clicked" but in Flux it would be defined as AnchorActions.Clicked. They're even so "dumb" that most implementations have separate Dispatcher ob...
Find out whether Chrome console is open
...th the added advantage of detecting both close and open events.
function toString (2019)
Credit to Overcl9ck's comment on this answer. Replacing the regex /./ with an empty function object still works.
var devtools = function() {};
devtools.toString = function() {
if (!this.opened) {
alert...
Recursive file search using PowerShell
...
I adapted this answer to do partial string by adding the astric symbol (*) to the end of the filename. ****** LINE1: $File = "Microsoft.OData.Core.NetFX35.V7*" LINE2: $Folder = "C:\Program Files" LINE3:Get-ChildItem -Path $Folder -Filter $File -Recurse -Erro...