sunnyy02

async function bootstrap() {
  const app = await NestFactory.create(AppModule);
  app.setGlobalPrefix('api');
   config.update({
        accessKeyId: '[your S3 Access key]',
        secretAccessKey: '[your S3 secret]',
        region: '[your S3 region]',
      });
  await app.listen(3000);
}

sunnyy02

// many ifs
function performActions(actionName: string) {
  if (actionName === "save") {
    // save...
  } else if (actionName === "update") {
    // update ...
  } else if (actionName === "delete") {
    // delete...
  }
}

sunnyy02

import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
import * as os from 'os';

const cluster = require('node:cluster');
const numCPUs = os.cpus().length;

async function bootstrap() {
  const app = await NestFactory.create(AppModule);
  await app.listen(3000);

sunnyy02

  attachFile(event: any) {
    const file: File = event.target.files?.[0];
    if (file && this.isValid(file)) {
      this.errorMessage = '';
      const formData = new FormData();
      formData.append('file', file, file.name);
      const uploadFileHeaders = new HttpHeaders({
        Accept: `application/json, text/plain, */*`,
      });
      this.httpClient

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  <input #fileInput type="file" class="file-input" [accept]="acceptedFileExtensions" (change)="attachFile($event)" />
  <div class="row document-type">
    <div class="col-xs-12">
      <button class="fileButton" action="file" (click)="onSelectFile()" type="submit">Upload document</button>
      allowed file types(JPG, PNG, GIF)
    </div>
  </div>

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@Injectable()
export class FileService {
  async uploadPublicFile(dataBuffer: Buffer, filename: string) {
    try {
      const s3 = new S3();
      const uploadResult = await s3
        .upload({
          Bucket: 'file-uploads',
          Body: dataBuffer,
          Key: `${uuid()}-${filename}`

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  @Post('upload')
  @UseInterceptors(FileInterceptor('file'))
  async uploadFile(
    @UploadedFile() file: Express.Multer.File,
    @Request() req,
  ): Promise<any> {
    const result = await this.fileservice.uploadPublicFile(
      file.buffer,
      file.originalname,
    );

sunnyy02

# create a simulator
xcrun simctl create "my first simulator" "iPhone X" com.apple.CoreSimulator.SimRuntime.iOS-14–5
# boot a simulator
xcrun simctl boot 64B94C27-A5BB-4B2A-8E6B-C48B1AFEF298
# shutdown
xcrun simctl shutdown 64B94C27-A5BB-4B2A-8E6B-C48B1AFEF298

# show content of a plist file
plutil -p "[HOME]/Library/Developer/CoreSimulator/Devices/[DEVICE_NAME]/data/Library/Preferences/.GlobalPreferences.plist"

sunnyy02

// Firstly define the entities 
type DataSchema = {
  client: {
      dto:  { id: string, name: string},
      entity: {clientId: string, clientName: string}
  },
  order:  {
      dto:  { id: string, amount: number},
      entity: {orderId: string, quantity: number}

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export class cloneable {
  public static deepCopy<T>(source: T): T {
    return Array.isArray(source)
    ? source.map(item => this.deepCopy(item))
    : source instanceof Date
    ? new Date(source.getTime())
    : source && typeof source === 'object'
          ? Object.getOwnPropertyNames(source).reduce((o, prop) => {
             Object.defineProperty(o, prop, Object.getOwnPropertyDescriptor(source, prop)!);
             o[prop] = this.deepCopy((source as { [key: string]: any })[prop]);