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This is my validator function. I need to pass the array of barcodes from my component. I have tried so many ways but nothing works.

 checkBarcodes(control: AbstractControl): { [key: string]: boolean } | null {
        let barcodes = ["6456", "6545", "2", "2", "121", "22", "11111", "22222"]
        for (let code of barcodes) {
            if (code == control.value) {
                return {
                    isValid: true
                }
            }
        }
        return null
    }
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1 Answer 1

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export function checkBarcodes(barcodes): ValidatorFn  {

    return (control : AbstractControl) : ({ [key: string]: boolean } | null) => {
        for (let code of barcodes) {
            if (code === control.value) {
                return  null ;
            }
        }
        return {'codeInvalid': true} ;
    }
}
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