simple node.js timers examples

node_timers_example1.js

setTimeout(function() {
	console.log('queue a print AFTER a second')
}, 1000)

setInterval(function() {
	console.log('queue a print EVERY second')
}, 1000)

setImmediate(function() {
	console.log('queue a print in the next event loop tick but after IO tasks are done')
})

process.nextTick(function() {
	console.log('queue a print at the head of the event loop queue')
})