Function assign

packages/apollo-utilities/src/util/assign.ts:18–31

(
  target: { [key: string]: any },
  ...sources: Array<{ [key: string]: any }>
)

): A & B & C & D & E;
export function assign(target: any, ...sources: Array<any>): any;
export function assign(
  target: { [key: string]: any },
  ...sources: Array<{ [key: string]: any }>
): { [key: string]: any } {
  sources.forEach(source => {
    if (typeof source === 'undefined' || source === null) {
      return;
    }
    Object.keys(source).forEach(key => {
      target[key] = source[key];
    });
  });
  return target;
}