Ignore Typescript Errors "Property Does Not Exist on Value of Type"

Ignore Typescript Errors property does not exist on value of type

I know the question is already closed but I've found it searching for same TypeScriptException, maybe some one else hit this question searching for this problem.

The problem lays in missing TypeScript typing:

var coordinates = outerElement[0].getBBox();

Throws The property 'getBBox' does not exist on value of type 'HTMLElement'.

The easiest way is to explicitly type variable as `any`

var outerHtmlElement: any = outerElement[0];
var coordinates = outerHtmlElement.getBBox();

Edit, late 2016

Since TypeScript 1.6, the prefered casting operator is as, so those lines can be squashed into:

let coordinates = (outerElement[0] as any).getBBox();

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Other solutions

Of course if you'd like to do it right, which is an overkill sometimes, you can:

1. Create own interface which simply extends HTMLElement
2. Introduce own typing which extends HTMLElement

Set tsconfig to ignore Property 'foo' does not exist on type 'bar'. but only for a specific variable

You can't do this in tsconfig, there is no such setting. You can do one of several things.

Use a type assertion to any. Using this all property accesses are allowed:

(bar as any).foo

Another option is to just suppress the error. You can use @ts-ignore to suppress ALL errors for the next line

//@ts-ignore
bar.foo // no error

Playground Link

Note: You might be better off finding the reason for the error, or augmenting the type or charging the type of the variable to something that incudes foo but without more details it is difficult to propose a solution.

Typescript property does not exist on type when using a type where property should exist

AnyEventPayload is a union type (which means that it might be any of those type variations between the union operators (|). Because of this, the reviewStatus property name might not be a part of the type, so in order to safely check that the payload value is of the type that includes that property, you can use the in operator to narrow the type to that specific variation. To do so, you just need to precede the equality check which accesses the property with an expression using the in operator so that TS can be sure that the property exists before trying to access it and compare its value:

TS Playground

if (
  message_type === 'idCheck.applicantStatus'
  // Add the following check to ensure that the property exists in the object
  && 'reviewStatus' in payload
  && payload.reviewStatus === 'completed'
) router.push('/');

Typescript error Property 'value' does not exist on type 'HTMLElement', Property 'onclick' does not exist on type 'Element'

Have you tried to follow: https://stackoverflow.com/a/12990166/13309686

The code would look like this:

function verifyPassword(){
    var pw1 = (<HTMLInputElement>document.getElementById("password1")).value;
    var pw2 = (<HTMLInputElement>document.getElementById("password2")).value;
    
    // Get the modal
    var modal = <HTMLInputElement>document.getElementById("myModal");
    
    // Get the button that opens the modal
    var btn1 = <HTMLInputElement>document.getElementById("myBtn");
    
    var confirm = <HTMLInputElement>document.getElementById("confirm");
    
    // Get the <span> element that closes the modal
    var span = <HTMLInputElement>document.getElementsByClassName("close")[0];
    
    
    btn1.onclick = function () {
        
        modal.style.display = "block";
    
        //check empty password field
    
        if(pw1 == "") {
            document.getElementById("message1").innerHTML = "Please put your new password!";
            return false;
        }
    
        //minimum password length validation
        if(pw1.length < 8) {
            document.getElementById("message1").innerHTML = "Password length must be atleast 8 characters";
            return false;
        }
    
        //maximum length of password validation
        if(pw1.length > 15) {
           document.getElementById("message1").innerHTML = "Password length must not exceed 15 characters";
           return false;
        } else {
           if(pw1 == pw2){
               document.getElementById("message1").innerHTML=  "Passwords match!";
           }
        
           else {
               document.getElementById("message1").innerHTML=  "Passwords not match!";
           }
        }
    
    }
    
    confirm.onclick = function () {
        modal.style.display = "none";
    }
    
    // When the user clicks on <span> (x), close the modal
    span.onclick = function() {
        modal.style.display = "none";
      }
    
      // When the user clicks anywhere outside of the modal, close it
    window.onclick = function(event) {
        if (event.target == modal) {
          modal.style.display = "none";
    }
    }
}

property does not exist on type in React Typescript

because your data is a single object but you defined your data as a list of objects.

import { To, useParams } from 'react-router-dom';
import axios from 'axios';
import { useState, useEffect } from 'react';
const SinglePOST = () => {
    type Todo = {
        title: string;
        body: string;
        userId: number;
        id: number;
    };
    const { id } = useParams();
    const [data, setData] = useState<Todo>();
    const [loading, setLoading] = useState<boolean>(false);
    const [isError, setError] = useState<any>(null);
    useEffect(() => {
        const singleReq = async () => {
            try {
                setLoading(true);
                const res = await axios.get<Todo>(
                    `https://jsonplaceholder.typicode.com/posts/${id}`
                );

                await setData(res.data);
                console.log(res.data);
            } catch (err) {
                setError(err);
            } finally {
                setLoading(false);
            }
        };
        singleReq();
    }, [id]);

    return (
        <div className=' w-full h-screen bg-slate-900 text-neutral-300 p-4'>
            <div className='w-full flex justify-center '> Single Post {id}</div>
            {loading && <p>...Loading</p>}
            {isError && <p> Error in getting post</p>}

            <div className='text-2xl'> {data?.title}</div>
            <div className=' text-xl'> {data?.body}</div>
        </div>
    );
};

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