coding style - How do I DRYup Angular 2 form component? -

i have form component,

@component({     templateurl: '/app/contact/contact.component.html',     styleurls: ['app/contact/contact.css'],     directives: [form_directives, reactive_form_directives],     providers: [formbuilder] })  export class contactcomponent {    contactform: formgroup;    subjets = ['informations', "offre d'emploi"];    name: abstractcontrol;   email: abstractcontrol;   message: abstractcontrol;   subjet: abstractcontrol;   comment: abstractcontrol;    constructor(fb: formbuilder) {      this.contactform = fb.group({       'name': ['', validators.compose([validators.required, validators.minlength(2)])],       'email': ['', validators.compose([validators.required, validators.minlength(2)])],       'subjet': ['', validators.compose([validators.required, validators.minlength(2)])],       'comment': ['', validators.compose([validators.required, validators.minlength(20)])]     });     this.name = this.contactform.controls['name'];     this.email = this.contactform.controls['email'];     this.subjet = this.contactform.controls['subjet'];     this.comment = this.contactform.controls['comment'];   }      onsubmit(form: any): void {     console.log('valeurs du formulaire:', form);   } } 

from snippet, known code violating dry, repetitions form fields! possible further dryup code minimise repetitions?

thanks.

you can try this:

constructor(fb: formbuilder) {   let group = {};    const fields = [     { key: 'name', len: 2 },      { key: 'email', len: 2 },      { key: 'subjet', len: 2 },      { key: 'comment', len: 20 }];    fields.foreach(field => {     group[field.key] = ['',         validators.compose([validators.required, validators.minlength(field.len)])];   });    this.contactform = fb.group(group);    fields.foreach(field => {     this[field.key] = this.contactform.controls[field.key]   }); }