front_end/ui/components/docs/data_grid/large-data.ts

// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import * as FrontendHelpers from '../../../../../test/unittests/front_end/helpers/EnvironmentHelpers.js';
import * as DataGrid from '../../data_grid/data_grid.js';
import * as ComponentHelpers from '../../helpers/helpers.js';

await ComponentHelpers.ComponentServerSetup.setup();
await FrontendHelpers.initializeGlobalVars();

const component = new DataGrid.DataGrid.DataGrid();

function createRandomString(): string {
  let ret = '';
  for (let i = 0; i < 16; i++) {
    const letter = String.fromCharCode(Math.floor(65 + Math.random() * 26));
    ret += letter;
  }
  return ret;
}

const rows = [];
for (let i = 0; i < 1000; i++) {
  const newRow = {
    cells: [
      {columnId: 'key', value: `Row ${i + 1}`},
      {columnId: 'value', value: createRandomString()},
    ],
  };
  rows.push(newRow);
}

component.data = {
  columns: [
    {id: 'key', title: 'Key', widthWeighting: 1, visible: true, hideable: false, sortable: true},
    {id: 'value', title: 'Value', widthWeighting: 1, visible: true, hideable: true},
  ],
  rows,
  activeSort: null,
};

document.getElementById('container')?.appendChild(component);