Created
January 29, 2014 01:49
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Normalize
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>polyfill node.normalize()</title> | |
| </head> | |
| <body> | |
| <div id="work"> | |
| foo | |
| <span></span> | |
| baz | |
| </div> | |
| <script> | |
| var work = document.querySelector('#work'); | |
| work.firstElementChild.appendChild(document.createTextNode('buzz')) | |
| work.firstElementChild.appendChild(document.createTextNode('quux')) | |
| var work2 = work.cloneNode(work); | |
| function normalize(node) { | |
| var temp = ''; | |
| var cn = Array.prototype.slice.call(node.childNodes, 0), l = cn.length, n, i; | |
| for (i = 0; (i < l) && (n = cn[i]); i++) { | |
| if (n.nodeType === Node.TEXT_NODE) { | |
| temp += n.textContent; | |
| node.removeChild(n); | |
| } else { | |
| node.insertBefore(document.createTextNode(temp), n); | |
| temp = ''; | |
| if (n.childNodes.length) { | |
| normalize(n); | |
| } | |
| } | |
| } | |
| if (temp.length) { | |
| node.appendChild(document.createTextNode(temp)); | |
| } | |
| } | |
| work.normalize(); | |
| normalize(work2); | |
| function structCompare(a, b) { | |
| var ret = a && b; | |
| ret = ret && a.nodeType === b.nodeType; | |
| ret = ret && a.childNodes.length === b.childNodes.length; | |
| ret = ret && a.textContent === b.textContent; | |
| for (var i = 0; i < a.childNodes.length; i++) { | |
| ret = ret && structCompare(a.childNodes[i], b.childNodes[i]); | |
| } | |
| return ret; | |
| } | |
| console.log(structCompare(work, work2)); | |
| </script> | |
| </body> | |
| </html> |
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