Sometimes, we want to get a variable type in TypeScript.
In this article, we’ll look at how to get a variable type in TypeScript.
How to get a variable type in TypeScript?
To get a variable type in TypeScript, we can use the typeof or instanceof operator.
For instance, we write
if (typeof abc === "number") {
// ...
}
if (fooOrBar instanceof Foo) {
// ...
}
to return the type of the abc variable with typeof abc.
And we use the instanceof operator to check if fooOrBar is created from the Foo constructor.
Conclusion
To get a variable type in TypeScript, we can use the typeof or instanceof operator.
