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README.md

@@ -1228,6 +1228,72 @@ var count = context.count;
 // returns 3
 ```
 
+<a name="method-for-each"></a>
+
+#### Complex64Array.prototype.forEach( predicate\[, thisArg] )
+
+Invokes a function once for each array element.
+
+```javascript
+var Complex64 = require( '@stdlib/complex-float32' );
+
+function log( v, i ) {
+    console.log( '%s: %s', i, v.toString() );
+}
+
+var arr = new Complex64Array( 3 );
+
+// Set the first three elements:
+arr.set( [ 1.0, 1.0 ], 0 );
+arr.set( [ 2.0, 2.0 ], 1 );
+arr.set( [ 3.0, 3.0 ], 2 );
+
+arr.forEach( log );
+/* =>
+    0: 1 + 1i
+    1: 2 + 2i
+    2: 3 + 3i
+*/
+```
+
+The invoked function is provided three arguments:
+
+-   **value**: current array element.
+-   **index**: current array element index.
+-   **arr**: the array on which this method was called.
+
+To set the function execution context, provide a `thisArg`.
+
+```javascript
+var Complex64 = require( '@stdlib/complex-float32' );
+
+function fcn( v, i ) {
+    this.count += 1;
+    console.log( '%s: %s', i, v.toString() );
+}
+
+var arr = new Complex64Array( 3 );
+
+var context = {
+    'count': 0
+};
+
+// Set the first three elements:
+arr.set( [ 1.0, -1.0 ], 0 );
+arr.set( [ 2.0, -2.0 ], 1 );
+arr.set( [ 3.0, -3.0 ], 2 );
+
+arr.forEach( fcn, context );
+/* =>
+    0: 1 + 1i
+    1: 2 + 2i
+    2: 3 + 3i
+*/
+
+var count = context.count;
+// returns 3
+```
+
 <a name="method-get"></a>
 
 #### Complex64Array.prototype.get( i )

benchmark/benchmark.for_each.js

@@ -0,0 +1,56 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench-harness' );
+var isComplex64 = require( '@stdlib/assert-is-complex64' );
+var pkg = require( './../package.json' ).name;
+var Complex64Array = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg+':forEach', function benchmark( b ) {
+	var arr;
+	var i;
+
+	arr = new Complex64Array( [ 1, 2, 3, 4 ] );
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		arr.forEach( check );
+		if ( arr.length !== 2 ) {
+			b.fail( 'should not change an array length' );
+		}
+	}
+	b.toc();
+	if ( arr.length !== 2 ) {
+		b.fail( 'should not change an array length' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+
+	function check( v ) {
+		if ( !isComplex64( v ) ) {
+			b.fail( 'should be a complex number' );
+		}
+	}
+});

benchmark/benchmark.for_each.length.js

@@ -0,0 +1,109 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench-harness' );
+var pow = require( '@stdlib/math-base-special-pow' );
+var Complex64 = require( '@stdlib/complex-float32' );
+var realf = require( '@stdlib/complex-realf' );
+var imagf = require( '@stdlib/complex-imagf' );
+var pkg = require( './../package.json' ).name;
+var Complex64Array = require( './../lib' );
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var arr;
+	var i;
+
+	arr = [];
+	for ( i = 0; i < len; i++ ) {
+		arr.push( new Complex64( i, i ) );
+	}
+	arr = new Complex64Array( arr );
+
+	return benchmark;
+
+	/**
+	* Benchmark function.
+	*
+	* @private
+	* @param {Benchmark} b - benchmark instance
+	*/
+	function benchmark( b ) {
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			arr.forEach( callback );
+			if ( arr.length !== len ) {
+				b.fail( 'should not change an array length' );
+			}
+		}
+		b.toc();
+		if ( arr.length !== len ) {
+			b.fail( 'should not change an array length' );
+		}
+		b.pass( 'benchmark finished' );
+		b.end();
+
+		function callback( value ) {
+			if ( realf( value ) !== imagf( value ) ) {
+				throw new Error( 'something went wrong' );
+			}
+		}
+	}
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+	var len;
+	var min;
+	var max;
+	var f;
+	var i;
+
+	min = 1; // 10^min
+	max = 6; // 10^max
+
+	for ( i = min; i <= max; i++ ) {
+		len = pow( 10, i );
+		f = createBenchmark( len );
+		bench( pkg+':forEach:len='+len, f );
+	}
+}
+
+main();