Angular4 responsive form add validation

this.invoiceForm = this.formBulider.group(new Invoice());

how do I add validator Validators? if I create a form in this way

Mar.09,2021

one way:

this.invoiceForm = this.formBuilder.group({
    control1: new FormControl('',[Validators.required,...]),
    control2: new FormControl('',[Validators.required,...])
})
The

Invoice object should contain multiple FormControl attributes.

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b377dd-410db.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b377dd-410db.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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