ben-ng

object Foo {
  var initialized = 0

  // This only happens once regardless of how many times Foo.fetch() is called
  initialized = initialized + 1

  def fetch(): Integer = initialized
}

class Foo {

ben-ng

while (current != null) {
    next = current->next;
    current->next = prev;
    prev = current;
    current = next;
}

head = prev;

ben-ng

Given an input.txt that represents a linked list a -> b -> c -> d -> e as a series of nodes with next pointers:

a>b
b>c
c>d
d>e

Reverse the linked list such that the output reads:

ben-ng

#!/usr/bin/env bash

# Where input.txt is:
# a>b
# b>c
# c>d
# d>e

paste -d '>' <(< input.txt | cut -d'>' -f2 | tac) <(< input.txt | cut -d'>' -f1 | tac)

ben-ng

#!/usr/bin/env bash
seq 1 100 | \
xargs -Ix -n1 echo "x + ((x % 3 == 0) + ((x % 5) == 0) * 2) * 1000" | \
bc | \
xargs -n1 printf "%04d\n" | \
sed 's/^1.*/Fizz/' | \
sed 's/^2.*/Buzz/' | \
sed 's/^3.*/FizzBuzz/' | \
sed 's/^0*//'

ben-ng

def convert(char):
	return {
		'M': 1000,
		'D': 500,
		'C': 100,
		'L': 50,
		'X': 10,
		'V': 5,
		'I': 1
	}.get(char)

ben-ng

// This doodad converts absolute paths like "/assets/thing.jpg" into relative ones like "assets/thing.jpg"
NSString * (^fixPrefix)(NSString *, NSString *) = ^NSString *(NSString * input, NSString *prefix) {
    NSString *needle = [[@"/" stringByAppendingString:prefix] stringByAppendingString:@"/"];
    NSString *replacement = [prefix stringByAppendingString:@"/"];
    
    input = [input stringByReplacingOccurrencesOfString:[@"'" stringByAppendingString:needle] withString:[@"'" stringByAppendingString:replacement]];
    input = [input stringByReplacingOccurrencesOfString:[@"\"" stringByAppendingString:needle] withString:[@"\"" stringByAppendingString:replacement]];
    input = [input stringByReplacingOccurrencesOfString:[@"(" stringByAppendingString:needle] withString:[@"(" stringByAppendingString:replacement]];
    return input;

ben-ng

// There is no String.substr on Salesforce. This uses String.substring instead.
// substring's arguments are different, so this just converts substr args to
// their substring equivalents.
function substrShim (str, start, len) {
    if (len <= 0)
        return '';

    if (start < 0)
        start = str.length + start;

ben-ng

Platform.Load('Core', '1.0');

function moo (foo, bar) {};

Write(moo.length); // You'll get a .NET error if you do this, weirdly enough.

ben-ng

define('foo', function () {
    function Foo () {
        Write('Hello World');
    };

    return Foo;
})

require(['foo'], function (Foo) {
    // Foo is undefined on Salesforce