stephan-v

<?php
class A 
{
    public static $var = "I'm set in A!<br>";
    
    public static function getStatic() {
        echo static::$var;
    }
    
    public static function getSelf() {

stephan-v

TL;DR - Lambda means "function used as data".

Anonymous function means "function without a name".

This is one of the relatively few cases where the Wikipedia definition of a word, while not entirely wrong, is misleading. Lambdas and anonymous functions are distinct ideas.

These ideas are commonly confused because in many programming languages (and lambda calculus) all lambdas are anonymous or vise verse.

In JavaScript, not all lambdas are anonymous, and not all anonymous functions are lambdas, so the distinction has some practical meaning.

stephan-v

#!/bin/bash

# Functions ==============================================

# return 1 if global command line program installed, else 0
# example
# echo "node: $(program_is_installed node)"
function program_is_installed {
  # set to 1 initially
  local return_=1