Angular shows an error when attempting to assign a parameter of type "" to a string[] type

While deploying my application through Visual Studio, I encountered an error when running "node_modules\webpack\bin\webpack.js --env.prod". Despite adding ("strictNullChecks":false) to my ts.config.json, the issue persists. Any assistance in resolving this matter would be highly appreciated.

Error

ERROR IN AddEmployee.component.html (121,13): Argument of type '"amount"'
is not assignable to parameter of type 'string[]'.

Check out my fetchemployee.component.ts below:

import { Component, Inject, SimpleChange, SimpleChanges } from
'@angular/core';
...

Here is a snippet from my AddEmployee.component.ts:

import { Component, OnInit } from "@angular/core";
import { Http, Headers } from "@angular/http";
...

Lastly, here is the code from AddEmployee.component.html:

<!DOCTYPE html>
<html>
...

Answer №1

The problem lies in this particular line of code

<span class="text-danger" 
      *ngIf="employeeForm.hasError('required', 'amount') && formDir.submitted">

It seems that you are trying to provide 'amount' as the second argument in the FormGroup.hasError() method. However, according to the documentation and the error message you received, the second argument should be an array of strings instead.

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