typeof

Function

  typeof — the type of a value

Synopsis

typeof(val: any) -> type

Description

The typeof function returns the type of its argument val. Types in Zed are first class so the returned type is also a Zed value. The type of a type is type type.

Examples

The types of various values:

echo  '1 "foo" 10.0.0.1 [1,2,3] {s:"foo"} null error("missing")' | zq -z 'yield typeof(this)' -

=>

<int64>
<string>
<ip>
<[int64]>
<{s:string}>
<null>
<error(string)>

The type of a type is type type:

echo null | zq -z 'yield typeof(typeof(this))' -

=>

<type>