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Check to see if redirect is from cached browser, or server.

$ curl -I google.com
HTTP/1.1 301 Moved Permanently
Location: http://www.google.com/
Content-Type: text/html; charset=UTF-8
Date: Thu, 13 Dec 2018 20:55:25 GMT
Expires: Sat, 12 Jan 2019 20:55:25 GMT
Cache-Control: public, max-age=2592000

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rails new my_project_name --api

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For rails 5:

source

Specific test file:

rails test test/models/my_model.rb

Specific test in file:

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Unique

https://stackoverflow.com/a/46790769/1180523

=UNIQUE(A2:A)

# Exclude the "N/A" results:
=UNIQUE(FILTER(A2:A,A2:A<>""))

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Strings in JSON Unmarshal

Quick note on this. JSON will add extra wrapping " quotes to strings which can really mess with you.

How to catch and remove the extra wrapping "'s:

example playground code

// UnmarshalJSON scrubs out whitespace from a valid json string, if any.

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VS Code GO - Delve error:

NOTE: /.../ is the full path to my project.

Error message:

could not launch process: open /.../cmd/server/debug.test: no such file or directory
could not remove /.../cmd/server/debug.test: remove /.../cmd/server/debug.test: no such file or directory
Process exiting with code: 1

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Source

Only 555-0100 through 555-0199 are now specifically reserved for fictional use; the other numbers have been reserved for actual assignment.

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An empty struct struct{} uses 0 memory:

More on it here https://dave.cheney.net/2014/03/25/the-empty-struct.

It can be used with channels as well if you just want to notify whatever is listening on a channel that something happened and not to transfer data between goroutines.

// DO NOT DO THIS: (it uses more memory)
func removeDuplicateUsers(users []User) []User {
	u := map[string]bool{}

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pragma solidity 0.8.7;

contract HelloWorld {
    // called state variables:
    // string message;
    
    // CONSTRUCTORS
    // https://academy.moralis.io/lessons/constructors-2
    // runs only 1x during compile.
    // constructor(string memory _msg){

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// See feedback: https://gist.github.com/skplunkerin/61fe0562a72016162aece7b22609fb62

pragma solidity 0.8.7;

contract MemoryAndStorage {

    struct User{
        uint id;
        uint balance;
    }