document. document.getElementById() returns the type HTMLElement which does not contain a value property. Property 'value' does not exist on type 'HTMLElement' in React Testing ... The subtype HTMLInputElement does however contain the value property. So a solution is to cast the result of getElementById() to HTMLInputElement like this: var inputValue = (<HTMLInputElement>document.getElementById(elementId)).value; <> is the casting operator in typescript. How to check if an object implements an interface in Typescript Wherever possible, TypeScript tries to automatically infer the types in your code. The type object, by the way, is a type that represents the non-primitive type, i.e. Trigger click in Typescript - Property 'click' does not exist on type ... Had we tried to call the method directly on the variable, we would have gotten the "Property 'map' does not exist on type" error, because of the possibility that the variable is not an array. property name' does not exist on type 'element Property 'value' does not exist on type ... - TekTutorialsHub Expected Behavior < Link component = {MyComponent} / > property exists does not exist on type unknown Example 3: REACT TS roperty 'value' does not exist on type 'EventTarget & Element'. The indexing type is itself a type, so we can use unions, keyof, or other types entirely: ts. property 'value' does not exist on type 'eventtarget & element' code ... error TS2339: Property 'for' does not exist on type 'HTMLProps ... Property does not exist on type 'DetailedHTMLProps ... - SemicolonWorld

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