/** * Calculates the maximum for a set of data. * @since 6.5.0 */Ext.define('Ext.data.summary.Max', { extend: 'Ext.data.summary.Base', alias: 'data.summary.max', /** * Name of the summary function that appears in the {@link Ext.grid.plugin.Summaries} plugin */ text: 'Max', calculate: function(records, property, root, begin, end) { var max = this.extractValue(records[begin], property, root), i, v; for (i = begin; i < end; ++i) { v = this.extractValue(records[i], property, root); if (v > max) { max = v; } } return max; }});