Function _fnFilterData

external/.datatables.js:4271–4329

(settings)

	// Update the filtering data for each row if needed (by invalidation or first run)
	function _fnFilterData(settings) {
		var columns = settings.aoColumns
		var data = settings.aoData
		var column
		var j, jen, filterData, cellData, row
		var wasInvalidated = false

		for (var rowIdx = 0; rowIdx < data.length; rowIdx++) {
			if (!data[rowIdx]) {
				continue
			}

			row = data[rowIdx]

			if (!row._aFilterData) {
				filterData = []

				for (j = 0, jen = columns.length; j < jen; j++) {
					column = columns[j]

					if (column.bSearchable) {
						cellData = _fnGetCellData(settings, rowIdx, j, "filter")

						// Search in DataTables is string based
						if (cellData === null) {
							cellData = ""
						}

						if (typeof cellData !== "string" && cellData.toString) {
							cellData = cellData.toString()
						}
					} else {
						cellData = ""
					}

					// If it looks like there is an HTML entity in the string,
					// attempt to decode it so sorting works as expected. Note that
					// we could use a single line of jQuery to do this, but the DOM
					// method used here is much faster https://jsperf.com/html-decode
					if (cellData.indexOf && cellData.indexOf("&") !== -1) {
						__filter_div.innerHTML = cellData
						cellData = __filter_div_textContent ? __filter_div.textContent : __filter_div.innerText
					}

					if (cellData.replace) {
						cellData = cellData.replace(/[\r\n\u2028]/g, "")
					}

					filterData.push(cellData)
				}

				row._aFilterData = filterData
				row._sFilterRow = filterData.join("  ")
				wasInvalidated = true
			}
		}

		return wasInvalidated