isArrayType
True if this type is the Array or ReadonlyArray type from lib.d.ts. This function will not return true if passed a type which extends Array (for example, the TypeScript AST's NodeArray type).
True if this type is the Array or ReadonlyArray type from lib.d.ts. This function will not return true if passed a type which extends Array (for example, the TypeScript AST's NodeArray type).