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Praveen Rangar

Type ‘Number’ not assignable to type ‘String’ error in TypeScript

June 23, 2023 by Praveen Rangar
Type 'Number' not assignable to type 'String'

The error occurs when you try to assign a value of type ‘Number’ to a variable that is expected to be of type ‘String’.

Categories Errors, Typescript Tags Typescript Leave a comment

React refers to UMD global, but the current file is a module

June 21, 2023 by Praveen Rangar
React refers to UMD global, but the current file is a module

To fix the error, you should import React as a module and update the TypeScript, React, and React-DOM versions in your project.

Categories Errors, Typescript Tags Typescript Leave a comment

Objects are not valid as a React child / Functions are not valid as a React child

June 19, 2023June 14, 2023 by Praveen Rangar
Objects are not valid as a React child Functions are not valid as a React child

The error “objects/functions are not valid react child” occurs when you try to directly render an object or a function as a child component in JSX code.

Categories React.js Tags React.js Leave a comment

Too many re-renders. React limits the number of renders to prevent an infinite loop error

June 11, 2023 by Praveen Rangar
Too many re-renders. React limits the number of renders to prevent an infinite loop typescript

React has limit of 50 renders, when the limit is exceeded, React throws the “Too many re-renders” error to prevent the browser from crashing.

Categories Errors, Typescript Tags Typescript Leave a comment

Can’t perform a React state update on an unmounted component error in React

June 9, 2023 by Praveen Rangar
Can’t perform a React state update on an unmounted component

The error occurs when you try to update the state of a component that no longer exists.

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React Hook has a missing dependency: ‘XXX’. Either include it or remove the dependency array

June 6, 2023 by Praveen Rangar
React Hook has a missing dependency ‘XXX’. Either include it or remove the dependency array

This error occurs you don’t include a dependency (like a variable or value) inside the dependency array while using “useEffect” or “useCallback” hook.

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Cannot be compiled under ‘isolatedModules’ because it is considered a global script file

June 5, 2023 by Praveen Rangar
Cannot be compiled under 'isolatedModules' because it is considered a global script file

This error occurs when a file in your project is doesn’t have an import or export statements.

Categories Errors, Typescript Tags Typescript Leave a comment

React Hook useXXX is called conditionally. React Hooks must be called in the exact same order in every component render

June 6, 2023June 2, 2023 by Praveen Rangar
React Hook useXXX is called conditionally. React Hooks must be called in

This error occurs when you use a React Hook, such as “useState” or “useEffect”, in a wrong way. Hooks cannot be called conditionally, inside loops.

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Prevent usage of Array index in keys error in React

June 6, 2023May 31, 2023 by Praveen Rangar
Prevent usage of Array index in keys

To prevent the error “Prevent usage of Array index in keys”, it is recommended to use unique and stable identifiers as keys for list items.

Categories React.js Tags React.js 2 Comments

Each child in a list should have a unique “key” prop

May 29, 2023 by Praveen Rangar
Each child in a list should have a unique key prop... error in react

In this article we will see that why the error “Each child in a list should have a unique ‘key’ prop” occurs in React and how to resolve it.

Categories React.js Tags React.js Leave a comment
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Recent Posts

  • TypeError: Promise.then is not a function in JavaScript
  • Type ‘Number’ not assignable to type ‘String’ error in TypeScript
  • React refers to UMD global, but the current file is a module
  • Objects are not valid as a React child / Functions are not valid as a React child
  • Too many re-renders. React limits the number of renders to prevent an infinite loop error

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