The Error “‘new’ expression whose target lacks construct signature” occurs because we use the new […]
Author: Carolyn Hise
How To Add Property to Existing Interface (extend) in TypeScript
Sometimes, when we have already declared an interface, but then we want to add a […]
How To Get the Type of a Constructor Function’s Arguments in TypeScript
Sometimes we want to get the data type of arguments in a constructor in a […]
How To Solve “Type ‘unknown’ is not assignable to type” in TypeScript
Sometimes we will get a value of an unknown data type. For example, when we […]
How To Solve “Property ‘getContext’ does not exist on type ‘HTMLElement'” in TypeScript
We usually use getContext() method to manipulate a canvas element on html document, when using […]
How To Initialize an Empty String Array in TypeScript
In the daily programmer’s coding work, we want to initialize an empty string array to […]
How To Access The Value Of a Promise in TypeScript
Sometimes we want to get data from a promise, such as calling an API from […]
How To Solve “Property ‘src’ does not exist on type ‘Element'” in TypeScript
When we want to set the path for an image element in html, we use […]
How To Solve “Cannot find name ‘console'” Error in TypeScript
While writing TypeScript code on the server side, you may get the error “Cannot find […]
How To Solve “Argument of type ‘string or undefined’ is not assignable to parameter of type string” in TypeScript
The data type of a variable can have the value undefined. When passing this data […]
How To Solve “An index signature parameter type cannot be a literal type or a generic type” in TypeScript
While working, when we use a data type that does not make it suitable for […]
How To Solve “Could not find declaration file for ‘styled-components'” in TypeScript
As libraries grow and become more complex, Demand for better styling methods will increase, including […]
How To Solve “‘Const’ declarations must be initialized” in TypeScript
Variables can be declared with a const like var or let. A const variable whose […]
How To Solve “Module can only be default-imported using esModuleInterop flag” in TypeScript
Modules are a way to organize your code into small, manageable chunks and allow programs […]
How To Solve import assignment cannot be used when targeting ECMAScript modules in TypeScript
It’s not difficult to import CommonJS modules from CommonJS modules or import ES modules from […]