iimos

"forEach,map,filter,reduce,reduceRight,every,some".split(",").forEach(function(p) {
    NodeList.prototype[p] = HTMLCollection.prototype[p] = Array.prototype[p]
})

iimos

function xpath(el) {
  if (typeof el == "string") return document.evaluate(el, document, null, 0, null)
  if (!el || el.nodeType != 1) return ''
  if (el.id) return "//*[@id='" + el.id + "']"
  var sames = [].filter.call(el.parentNode.children, function (x) { return x.tagName == el.tagName })
  return xpath(el.parentNode) + '/' + el.tagName.toLowerCase() + (sames.length > 1 ? '['+([].indexOf.call(sames, el)+1)+']' : '')
}

// Usage:

iimos

#! /bin/sh

# Usage 1:
# optimize-images.sh /images/dir
# 
# Usage 2:
# cd /images/dir
# optimize-images.sh 

EXTENSIONS="jpe?g"