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snosrap / HTMLTableElement.prototype.fp_toTable.html

Last active June 25, 2025 09:39

Convert HTMLTableElement (with rowSpan and colSpan) into a JavaScript Array

	<script type="text/javascript">
	HTMLTableElement.prototype.fp_toTable = function(nullvalue = null) {
	var columnCount = Array.from(this.rows).map(row => Array.from(row.cells).reduce((sum, cell) => sum + cell.colSpan, 0)).reduce((max, row) => Math.max(max, row), 0);
	var itemCount = Array.from(this.rows).reduce((rsum, row) => rsum + Array.from(row.cells).reduce((csum, cell) => csum + (cell.colSpan * cell.rowSpan), 0), 0);
	var rowCount = itemCount / columnCount;
	var items = Array.apply(null, Array(itemCount));
	tds = Array.from(this.getElementsByTagName('td'));
	for(var i=0, ii=0; i<tds.length; i++, ii=items.indexOf(undefined, i)) {
	items[ii] = tds[i].innerText;
	for(var j=0;j<tds[i].colSpan;j++) {

sstur / dom-to-json.js

Last active January 17, 2026 16:38

Stringify DOM nodes using JSON (and revive again)

	function toJSON(node) {
	let propFix = { for: 'htmlFor', class: 'className' };
	let specialGetters = {
	style: (node) => node.style.cssText,
	};
	let attrDefaultValues = { style: '' };
	let obj = {
	nodeType: node.nodeType,
	};
	if (node.tagName) {