How to apply kusto function to each rows?

Question

I am using kusto. I have a function and I want to use it for each row. I can call the function with | invoke <FUNCTION_NAME> but how can I apply to app rows ?

Answer 1

Use the "extend" operator

For example:

let f = view(a:int){
a*3
};
let t = datatable(a:int) [ 1,2,3];
t 
| extend b = f(a)

a	b
1	3
2	6
3	9