<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>MyApp</title>
  <!--<base href="/">-->
  <script>document.write('<base href="' + document.location + '" />');</script>

  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="styles.css">
  <link rel="icon" type="image/x-icon" href="favicon.ico">
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>
    <script src="https://unpkg.com/zone.js@0.7.4?main=browser"></script>
    <script src="https://unpkg.com/systemjs@0.19.39/dist/system.src.js"></script>
    <script src="systemjs.config.js"></script>
    <script>
      System.import('main.js').catch(function(err){ console.error(err); });
    </script>
</head>
<body>
  <app-root></app-root>
</body>
</html>
import { enableProdMode } from '@angular/core';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';

import { AppModule } from './app/app.module';

platformBrowserDynamic().bootstrapModule(AppModule);


/*
Copyright 2017 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/
.container {
  height: 500px;
  width: 750px;
  overflow: scroll;
}

.grid {
  display: grid;
}

.cell {
  border: 1px solid #b0d347;
}
<div class="container" (scroll)="onScroll($event)">
  <div class="grid" [ngStyle]="getGridDefinition()">
    <div [ngStyle]="totalSpan()"></div>
    <div class="cell" *ngFor="let cell of gridCells" [ngStyle]="positionDataCell(cell)">
      {{ cell.data }}
    </div>
  </div>
</div>
import { Component, ElementRef, OnInit } from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {

  public dataCells: any[];
  public gridCells: any[];

  private bufferCells = 1;
  private totalColumns = 50;
  private totalRows = 50;
  private columnWidth = 50;
  private rowHeight = 50;

  private totalVisibleColumns;
  private totalVisibleRows;

  private lastRowIndex = 0;
  private lastColIndex = 0;

  constructor(private el: ElementRef) {
  }

  ngOnInit() {
    this.calculateVisibleCells(this.bufferCells);
    this.dataCells = this.generateDataCells();
    this.gridCells = this.createGridCells(this.totalVisibleRows, this.totalVisibleColumns);
  }

  public totalSpan() {
    return {
      'grid-row': '1 / span ' + this.totalRows,
      'grid-column': '1 / span ' + this.totalColumns
    };
  }

  public onScroll(event: Event): void {
    const firstVisibleRow = Math.ceil((event.srcElement.scrollTop) / this.rowHeight);
    const firstVisibleCol = Math.ceil((event.srcElement.scrollLeft) / this.columnWidth);

    if (firstVisibleRow !== this.lastRowIndex && firstVisibleRow + this.totalVisibleRows <= this.totalRows + 1) {
      this.shiftToRow(firstVisibleRow);
      this.lastRowIndex = firstVisibleRow;
    }

    if (firstVisibleCol !== this.lastColIndex && firstVisibleCol + this.totalVisibleColumns <= this.totalColumns + 1) {
      this.shiftToCol(firstVisibleCol);
      this.lastColIndex = firstVisibleCol;
    }
  }

  private shiftToRow(row: number): void {
    let gridCellIndex = 0;

    for (let i = 1; i <= this.totalVisibleColumns; i++) {
      let shiftToRow = row;
      const colIndex = this.lastColIndex + i;

      for (let j = 1; j <= this.totalVisibleRows; j++) {
        const dataCell = this.getDataCellByPosition(colIndex, shiftToRow);
        const gridCell = this.gridCells[gridCellIndex];

        if (dataCell) {
          gridCell.col = colIndex;
          gridCell.row = shiftToRow;
          gridCell.data = dataCell.id;
        }

        shiftToRow++;
        gridCellIndex++;
      }
    }
  }

  private shiftToCol(col: number): void {
    let gridCellIndex = 0;

    for (let i = 1; i <= this.totalVisibleRows; i++) {
      let shiftToCol = col;
      const rowIndex = this.lastRowIndex + i;

      for (let j = 1; j <= this.totalVisibleColumns; j++) {
        const dataCell = this.getDataCellByPosition(rowIndex, shiftToCol);
        const gridCell = this.gridCells[gridCellIndex];

        if (dataCell) {
          gridCell.col = shiftToCol;
          gridCell.row = rowIndex;
          gridCell.data = dataCell.id;
        }

        shiftToCol++;
        gridCellIndex++;
      }
    }
  }

  private getDataCellByPosition(colIndex, rowIndex) {
    return this.dataCells.find(cell => cell.col === colIndex && cell.row === rowIndex);
  }

  private calculateVisibleCells(bufferCells: number) {
    const containerWidth = this.el.nativeElement.firstElementChild.offsetWidth;
    const containerHeight = this.el.nativeElement.firstElementChild.offsetHeight;

    this.totalVisibleColumns = Math.ceil(containerWidth / this.columnWidth) + bufferCells;
    this.totalVisibleRows = Math.ceil(containerHeight / this.rowHeight) + bufferCells;
  }

  private createGridCells(totalVisibleRows: number, totalVisibleColumns: number): any[] {
    const gridCells = [];

    for (let i = 1; i <= totalVisibleColumns; i++) {
      for (let j = 1; j <= totalVisibleRows; j++) {
        gridCells.push(this.createCell(i, j));
      }
    }

    return gridCells;
  }

  public getGridDefinition() {
    return {
      'grid-auto-columns': this.columnWidth + 'px',
      'grid-auto-rows': this.rowHeight + 'px'
    };
  }

  public positionDataCell(cell) {
    return {
      'grid-row': cell.row,
      'grid-column': cell.col
    };
  }

  private generateDataCells(): any[] {
    const data = [];

    // We start at 1 since CSS grid isn't 0 based.
    for (let i = 1; i <= this.totalColumns; i++) {
      for (let j = 1; j <= this.totalRows; j++) {
        data.push(this.createCell(i, j));
      }
    }

    return data;
  }

  private createCell(col: number, row: number): { id: string, col: number, row: number, data: string } {
    return {
      id: col + '-' + row,
      col: col,
      row: row,
      data: col + '-' + row
    };
  }
}

import {BrowserModule} from '@angular/platform-browser';
import {NgModule} from '@angular/core';
import {FormsModule} from '@angular/forms';
import {AppComponent} from './app.component';

@NgModule({
	declarations: [
		AppComponent
	],
	imports: [
		BrowserModule,
		FormsModule
	],
	providers: [],
	bootstrap: [AppComponent]
})
export class AppModule {}
var templateUrlRegex = /templateUrl\s*:(\s*['"`](.*?)['"`]\s*)/gm;
var stylesRegex = /styleUrls *:(\s*\[[^\]]*?\])/g;
var stringRegex = /(['`"])((?:[^\\]\\\1|.)*?)\1/g;

module.exports.translate = function(load){
  if (load.source.indexOf('moduleId') != -1) return load;

  var url = document.createElement('a');
  url.href = load.address;

  var basePathParts = url.pathname.split('/');

  basePathParts.pop();
  var basePath = basePathParts.join('/');

  var baseHref = document.createElement('a');
  baseHref.href = this.baseURL;
  baseHref = baseHref.pathname;

  if (!baseHref.startsWith('/base/')) { // it is not karma
    basePath = basePath.replace(baseHref, '');
  }

  load.source = load.source
    .replace(templateUrlRegex, function(match, quote, url){
      var resolvedUrl = url;

      if (url.startsWith('.')) {
        resolvedUrl = basePath + url.substr(1);
      }

      return 'templateUrl: "' + resolvedUrl + '"';
    })
    .replace(stylesRegex, function(match, relativeUrls) {
      var urls = [];

      while ((match = stringRegex.exec(relativeUrls)) !== null) {
        if (match[2].startsWith('.')) {
          urls.push('"' + basePath + match[2].substr(1) + '"');
        } else {
          urls.push('"' + match[2] + '"');
        }
      }

      return "styleUrls: [" + urls.join(', ') + "]";
    });

  return load;
};
/**
 * WEB ANGULAR VERSION
 * (based on systemjs.config.js in angular.io)
 * System configuration for Angular samples
 * Adjust as necessary for your application needs.
 */
(function (global) {
  System.config({
    // DEMO ONLY! REAL CODE SHOULD NOT TRANSPILE IN THE BROWSER
    transpiler: 'ts',
    typescriptOptions: {
      // Copy of compiler options in standard tsconfig.json
      "target": "es5",
      "module": "commonjs",
      "moduleResolution": "node",
      "sourceMap": true,
      "emitDecoratorMetadata": true,
      "experimentalDecorators": true,
      "lib": ["es2015", "dom"],
      "noImplicitAny": true,
      "suppressImplicitAnyIndexErrors": true
    },
    meta: {
      'typescript': {
        "exports": "ts"
      }
    },
    paths: {
      // paths serve as alias
      'npm:': 'https://unpkg.com/'
    },
    // map tells the System loader where to look for things
    map: {
      // our app is within the app folder
      'app': 'app',

      // angular bundles
      '@angular/animations': 'npm:@angular/animations/bundles/animations.umd.js',
      '@angular/animations/browser': 'npm:@angular/animations/bundles/animations-browser.umd.js',
      '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
      '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
      '@angular/common/http': 'npm:@angular/common/bundles/common-http.umd.js',
      '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
      '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
      '@angular/platform-browser/animations': 'npm:@angular/platform-browser/bundles/platform-browser-animations.umd.js',
      '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
      '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
      '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
      '@angular/router/upgrade': 'npm:@angular/router/bundles/router-upgrade.umd.js',
      '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
      '@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
      '@angular/upgrade/static': 'npm:@angular/upgrade/bundles/upgrade-static.umd.js',

      // other libraries
      'rxjs':                      'npm:rxjs@5.5.2',
      'rxjs/operators':            'npm:rxjs@5.5.2/operators/index.js',
      'tslib':                     'npm:tslib/tslib.js',
      'angular-in-memory-web-api': 'npm:angular-in-memory-web-api@0.4/bundles/in-memory-web-api.umd.js',
      'ts':                        'npm:plugin-typescript@5.2.7/lib/plugin.js',
      'typescript':                'npm:typescript@2.4.2/lib/typescript.js',

    },
    // packages tells the System loader how to load when no filename and/or no extension
    packages: {
      app: {
        main: './main.ts',
        defaultExtension: 'ts',
        meta: {
          './*.ts': {
            loader: 'systemjs-angular-loader.js'
          }
        }
      },
      rxjs: {
        defaultExtension: 'js'
      }
    }
  });

})(this);

/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/
/* Application-wide Styles */
h1 {
	color: #369;
	font-family: Arial, Helvetica, sans-serif;
	font-size: 250%;
}
h2, h3 {
	color: #444;
	font-family: Arial, Helvetica, sans-serif;
	font-weight: lighter;
}
body {
	margin: 2em;
}
body, input[text], button {
	color: #888;
	font-family: Cambria, Georgia;
}
/* everywhere else */
* {
	font-family: Arial, Helvetica, sans-serif;
}