fix: minor clean-up and increment index correctly

lib/node_modules/@stdlib/iter/cusome-by/README.md

@@ -42,7 +42,7 @@ var iterCuSomeBy = require( '@stdlib/iter/cusome-by' );
 
 #### iterCuSomeBy( iterator, n, predicate\[, thisArg] )
 
-Returns an [iterator][mdn-iterator-protocol] which cumulatively tests whether every iterated value passes a test implemented by a `predicate` function.
+Returns an [iterator][mdn-iterator-protocol] which cumulatively tests whether at least `n` iterated values pass a test implemented by a `predicate` function.
 
 ```javascript
 var array2iterator = require( '@stdlib/array/to-iterator' );
@@ -53,7 +53,7 @@ function isPositive( v ) {
 
 var arr = array2iterator( [ 0, 0, 0, 1, 1 ] );
 
-var it = iterCuSomeBy( arr, 2, predicate );
+var it = iterCuSomeBy( arr, 2, isPositive );
 
 var v = it.next().value;
 // returns false
@@ -162,8 +162,8 @@ var opts = {
 };
 var riter = randu( opts );
 
-// Create an iterator which cumulatively tests whether every iterated value is above threshold:
-var it = iterCuSomeBy( riter, 5, threshold );
+// Create an iterator which tracks whether at least two values have exceeded the threshold:
+var it = iterCuSomeBy( riter, 2, threshold );
 
 // Perform manual iteration...
 var r;

lib/node_modules/@stdlib/iter/cusome-by/docs/repl.txt

@@ -1,7 +1,7 @@
 
 {{alias}}( iterator, n, predicate[, thisArg] )
-    Returns an iterator which cumulatively tests whether at least `n` iterated values
-    pass a test implemented by a predicate function.
+    Returns an iterator which cumulatively tests whether at least `n` iterated
+    values pass a test implemented by a predicate function.
 
     If an environment supports Symbol.iterator and a provided iterator is
     iterable, the returned iterator is iterable.

lib/node_modules/@stdlib/iter/cusome-by/examples/index.js

@@ -31,7 +31,7 @@ var opts = {
 };
 var riter = randu( opts );
 
-// Create an iterator which tracks whether at least 5 values have exceeded the threshold:
+// Create an iterator which tracks whether at least two values have exceeded the threshold:
 var it = iterCuSomeBy( riter, 2, threshold );
 
 // Perform manual iteration...

lib/node_modules/@stdlib/iter/cusome-by/lib/main.js

@@ -84,7 +84,7 @@ function iterCuSomeBy( iterator, n, predicate, thisArg ) {
 		throw new TypeError( format( 'invalid argument. Second argument must be a positive integer. Value: `%s`.', n ) );
 	}
 	if ( !isFunction( predicate ) ) {
-		throw new TypeError( format( 'invalid argument. Second argument must be a function. Value: `%s`.', predicate ) );
+		throw new TypeError( format( 'invalid argument. Third argument must be a function. Value: `%s`.', predicate ) );
 	}
 	count = 0;
 	i = -1;
@@ -120,6 +120,7 @@ function iterCuSomeBy( iterator, n, predicate, thisArg ) {
 			FLG = true;
 			return v;
 		}
+		i += 1;
 		if ( !value && predicate.call( thisArg, v.value, i ) ) {
 			count += 1;
 			if ( count === n ) {

lib/node_modules/@stdlib/iter/cusome-by/test/test.js

@@ -166,7 +166,7 @@ tape( 'if provided an "empty" iterator, the function returns an iterator which i
 	t.end();
 });
 
-tape( 'the function returns an iterator which cumulatively tests whether every iterated value passes a test implemented by a predicate function', function test( t ) {
+tape( 'the function returns an iterator which cumulatively tests whether at least `n` iterated values pass a test', function test( t ) {
 	var expected;
 	var actual;
 	var values;