Sometimes, we want to cast arrays with TypeScript.
In this article, we’ll look at how to cast arrays with TypeScript.
How to cast arrays with TypeScript?
To cast arrays with TypeScript, we can use the as keyword or add the variable name before the array expression.
For instance, we write
const a = x as number[];
or
const a = x as Array<number>;
to cast x to a number array with as.
Also, we can write
const a = <number[]>x;
or
const a = <Array<number>>x;
to cast x to a number array by putting the type in brackets before x.
Conclusion
To cast arrays with TypeScript, we can use the as keyword or add the variable name before the array expression.
