docs: fix paramater name

Author: anandkaranubc

lib/node_modules/@stdlib/math/base/special/heaviside/lib/str2enum.js

@@ -0,0 +1,52 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 enumeration = require( './enum.js' );
+
+
+// VARIABLES //
+
+var ENUM = enumeration();
+
+
+// MAIN //
+
+/**
+* Returns the enumeration constant associated with a function continuity type string.
+*
+* @private
+* @param {string} ctype - function continuity type string
+* @returns {(integer|null)} integer value or null
+*
+* @example
+* var v = str2enum( 'left-continuous' );
+* // returns <number>
+*/
+function str2enum( ctype ) {
+	var v = ENUM[ ctype ];
+	return ( typeof v === 'number' ) ? v : null; // note: we include this guard to prevent walking the prototype chain
+}
+
+
+// EXPORTS //
+
+module.exports = str2enum;