In TypeScript, you can increment a number using the ++ operator.
Here's an example:
let num: number = 5;
num++; // num is now 6
In this example, we first define a variable num with the value of 5. Then, we use the ++ operator to increment num by 1. Afterwards, num is now equal to 6.
You can also use the ++ operator before the variable name. Here's an example:
let num: number = 5;
++num; // num is now 6
This produces the same result as the previous example. By using ++ before the variable name, we first increment num by 1 and then assign the new value to the same variable.