chore: use number

Signed-off-by: Muhammad Haris <[email protected]>

Author: headlessNode

lib/node_modules/@stdlib/blas/ext/base/slast-index-of/docs/types/test.ts

@@ -52,11 +52,11 @@ import slastIndexOf = require( './index' );
 
 // The compiler throws an error if the function is provided a third argument which is not a Float32Array...
 {
-	slastIndexOf( x.length, 1.0, '1', 1 ); // $ExpectError
-	slastIndexOf( x.length, 1.0, true, 1 ); // $ExpectError
-	slastIndexOf( x.length, 1.0, false, 1 ); // $ExpectError
-	slastIndexOf( x.length, 1.0, null, 1 ); // $ExpectError
-	slastIndexOf( x.length, 1.0, {}, 1 ); // $ExpectError
+	slastIndexOf( 3, 1.0, '1', 1 ); // $ExpectError
+	slastIndexOf( 3, 1.0, true, 1 ); // $ExpectError
+	slastIndexOf( 3, 1.0, false, 1 ); // $ExpectError
+	slastIndexOf( 3, 1.0, null, 1 ); // $ExpectError
+	slastIndexOf( 3, 1.0, {}, 1 ); // $ExpectError
 }
 
 // The compiler throws an error if the function is provided a fourth argument which is not a number...