Typescript error "Argument of type 'number[]' is not assignable to parameter of type 'number'"

Question

I get the following error in Typescript:

Argument of type 'number[]' is not assignable to parameter of type 'number'

I get the max value of array without the below error:

analysis_horizon_array_test: number[] = [];

this.analysis_horizon_array_test.push(1)
console.log(Math.max(this.analysis_horizon_array_test));

How do I get the max value of an array without throwing an error? It does work though.

Answer 1

Math.max takes individual numbers, not an array. You can use spread syntax if you're compiling to a supported target, otherwise you have to use apply:

console.log(Math.max(...this.analysis_horizon_array_test));