jrickerd

String.prototype.isCreditCard() {
      if (this.length > 19)
          return (false);

     return (parseInt(this) % 10 === 0)
}

jrickerd

// Exercise 2 - Closures
// Wrap the following code in a closure and export only the "countdown" function.

// Code
(function(){
     var index;

     function log(){
          console.log(index);
     }

jrickerd

// Exercise 1 - OO || !OO
// Define a data structure for cars (make and color), and a function
// that logs a string like "I'm a red Mercedes" to the console.
// Make two versions: a functional version, and a object-oriented version.

// Example call for functional version:


var Car = function(make, color) {
	this.log = function() {

jrickerd

// 1. Write a class to support the following code:

// var thomas = new Person('Thomas');
// var amy = new Person('Amy');

// thomas.name // --> "Thomas"

// 2. Add a getName() method to all Person objects, that outputs
// the persons name.

jrickerd

Function.prototype.memoized = function(key) {
  var originalFunction = this;
  if (!('cache' in originalFunction))
        originalFunction.cache = {};
  if (key in originalFunction.cache) {
    console.log('returning cached value ' + originalFunction.cache[key] + ' for ' + key);
    return originalFunction.cache[key];
  } else {
    console.log('adding value to cache for ' + key);
    return originalFunction.cache[key] = originalFunction(key);

jrickerd

ssh -f user@remote.com -L localport:local:remoteport -N

jrickerd

mysql --max_allowed_packet=100M -u root -p database < dump.sql

set global net_buffer_length=1000000; 
set global max_allowed_packet=1000000000;

jrickerd

for f in *.jpeg; do mv $f ${f%.*}.jpg; done

jrickerd

select
    TABLE_SCHEMA as 'database',
    concat(table_name, '.', column_name) as 'foreign key',  
    concat(referenced_table_name, '.', referenced_column_name) as 'references'
from
    information_schema.key_column_usage
where
    referenced_table_name is not null;

jrickerd

gc <file> | out-file -enc utf8 <file>