refactor: extract randomizer to component

src/app/screen-basic/screen-basic.component.ts

@@ -0,0 +1,60 @@
+import { Component, OnInit} from '@angular/core';
+import { FormsModule } from '@angular/forms';
+import { RouterOutlet, ActivatedRoute } from '@angular/router';
+import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
+import { CommonModule } from '@angular/common';
+
+@Component({
+  selector: 'app-screen-basic',
+  imports: [NgbModule, RouterOutlet, CommonModule, FormsModule, ScreenBasicComponent],
+  templateUrl: './screen-basic.component.html',
+  styleUrl: './screen-basic.component.less'
+})
+export class ScreenBasicComponent {
+  playerNamesValue = "";
+  numTeamsSelectorValue = "2";
+  numTeamsSelected = 2;
+  nTeamsValue = "4";
+  teamsArray: string[][] = [];
+  duplicateNames: string[] = [];
+  
+  onButtonGenerate(textinput: string): void{
+    if(this.numTeamsSelectorValue === 'n'){
+      this.numTeamsSelected  = Number(this.nTeamsValue);
+    }
+    else{
+      this.numTeamsSelected = Number(this.numTeamsSelectorValue);
+    }
+    let nameslist = this.playerNamesValue
+        .split('\n')
+        .map(function(str){return str.trim();})
+        .filter(function(str){return str}); // boolean interpretation is same as non-empty
+    // remove duplicates by using a Set
+    let namesset = new Set(nameslist);
+    let names = [...namesset];
+
+    
+    let teams = Array.from({ length: this.numTeamsSelected }, () => []);
+    let playersPerTeam = Math.floor(names.length / this.numTeamsSelected);
+
+    let nameslen = names.length;
+    function* iter(list: any[]){
+        let index = 0;
+        while(true){
+            yield list[index % list.length];
+            index++;
+        }
+    }
+    let iterator = iter(teams);
+    for(let i =0; i < nameslen; i++){
+        let index = Math.floor(Math.random()* names.length);
+        let n = names[index]; 
+        names.splice(index,1);
+        let team = iterator.next().value;
+        team.push(n);
+
+    }
+    this.teamsArray = teams;
+  }
+
+}