Apply suggestions from code review

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/array/fixed-endian-factory/benchmark/benchmark.at.js

@@ -33,7 +33,7 @@ var Float64ArrayFE = factory( 'float64' );
 
 // MAIN //
 
-bench( pkg+':at:endianness=little-endian', function benchmark( b ) {
+bench( pkg+'::nonnegative_indices:at:endianness=little-endian', function benchmark( b ) {
 	var arr;
 	var N;
 	var v;
@@ -61,7 +61,7 @@ bench( pkg+':at:endianness=little-endian', function benchmark( b ) {
 	b.end();
 });
 
-bench( pkg+':at:endianness=little-endian', function benchmark( b ) {
+bench( pkg+'::negative_indices:at:endianness=little-endian', function benchmark( b ) {
 	var arr;
 	var N;
 	var v;
@@ -89,7 +89,7 @@ bench( pkg+':at:endianness=little-endian', function benchmark( b ) {
 	b.end();
 });
 
-bench( pkg+':at:endianness=big-endian', function benchmark( b ) {
+bench( pkg+'::nonnegative_indices:at:endianness=big-endian', function benchmark( b ) {
 	var arr;
 	var N;
 	var v;
@@ -117,7 +117,7 @@ bench( pkg+':at:endianness=big-endian', function benchmark( b ) {
 	b.end();
 });
 
-bench( pkg+':at:endianness=big-endian', function benchmark( b ) {
+bench( pkg+'::negative_indices:at:endianness=big-endian', function benchmark( b ) {
 	var arr;
 	var N;
 	var v;

lib/node_modules/@stdlib/array/fixed-endian-factory/lib/main.js

@@ -694,16 +694,16 @@ function factory( dtype ) { // eslint-disable-line max-lines-per-function, stdli
 	});
 
 	/**
-	* Takes an integer value and returns the data at that index.
+	* Returns an array element located at integer position (index) `i`, with support for both nonnegative and negative integer indices.
 	*
 	* @private
 	* @name at
 	* @memberof TypedArray.prototype
 	* @type {Function}
-	* @param {integer} idx - required index
+	* @param {integer} idx - element index
 	* @param {*} [thisArg] function invocation context
 	* @throws {TypeError} `this` must be a typed array instance
-	* @throws {TypeError} first argument must be an integer
+	* @throws {TypeError} must provide an integer
 	* @returns {(*|void)} array element
 	*/
 	setReadOnly( TypedArray.prototype, 'at', function at( idx ) {
@@ -712,13 +712,13 @@ function factory( dtype ) { // eslint-disable-line max-lines-per-function, stdli
 			throw new TypeError( format( 'invalid invocation. `this` is not %s %s.', CHAR2ARTICLE[ dtype[0] ], CTOR_NAME ) );
 		}
 		if ( !isInteger( idx ) ) {
-			throw new TypeError( format( 'invalid argument. Must provide a nonnegative integer. Value: `%s`.', idx ) );
+			throw new TypeError( format( 'invalid argument. Must provide an integer. Value: `%s`.', idx ) );
 		}
 		len = this._length;
 		if ( idx < 0 ) {
 			idx += len;
 		}
-		if ( idx >= this._length || idx < 0 ) {
+		if ( idx < 0 || idx >= len ) {
 			return;
 		}
 		return this._buffer[ GETTER ]( idx * BYTES_PER_ELEMENT, this._isLE );