search-service.service.ts

import { Component, NgModule, OnInit } from '@angular/core';
import { Pipe, PipeTransform } from '@angular/core';

import { BrowserModule } from '@angular/platform-browser';
import _ from 'lodash';

@Pipe({name: 'Search'})
export class SearchService implements PipeTransform {
  transform(obj: any, term) {
    if (obj != null && term) {
      return obj.filter(el => {
        let testString = JSON.stringify(el);

        Object.keys(el).forEach(k => {
          testString = testString.replace(k, '');
        });

        const terms = term.replace(/[\s]+/gm, '').replace(/^[\s]|[\s]$/gm, '').split(' ');
        let containCount = 0;

        terms.forEach(item => {
          if (testString.toLowerCase().indexOf(item.toLowerCase()) > -1) {
            ++containCount;
          }
        });

        return (containCount === terms.length);
      });
    }

    return obj;
  }
}