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CONTRIBUTORS

@@ -5,6 +5,7 @@
 Adarsh Palaskar <[email protected]>
 Aditya Sapra <[email protected]>
 AgPriyanshu18 <[email protected]>
+Aleksandr <[email protected]>
 Ali Salesi <[email protected]>
 Aman Bhansali <[email protected]>
 Amit Jimiwal <[email protected]>
@@ -69,8 +70,10 @@ Seyyed Parsa Neshaei <[email protected]>
 Shashank Shekhar Singh <[email protected]>
 Shivam <[email protected]>
 Shraddheya Shendre <[email protected]>
+Shubh Mehta <[email protected]>
 Shubham Mishra <[email protected]>
 Snehil Shah <[email protected]>
+Soumajit Chatterjee <[email protected]>
 Spandan Barve <[email protected]>
 Stephannie Jiménez Gacha <[email protected]>
 Suraj kumar <[email protected]>
@@ -83,4 +86,5 @@ Yernar Yergaziyev <[email protected]>
 naveen <[email protected]>
 nishant-s7 <[email protected]>
 orimiles5 <[email protected]>
+rainn <[email protected]>
 rei2hu <[email protected]>

base/for-each-code-point-right/README.md

@@ -0,0 +1,146 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2024 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.
+
+-->
+
+# forEachCodePointRight
+
+> Invokes a function for each Unicode code point in a string, iterating from right to left.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var forEachCodePointRight = require( '@stdlib/string/base/for-each-code-point-right' );
+```
+
+#### forEachCodePointRight( str, clbk\[, thisArg ] )
+
+Invokes a function for each Unicode code point in a string, iterating from right to left.
+
+```javascript
+function log( value, index ) {
+    console.log( '%d: %s', index, value );
+}
+
+forEachCodePointRight( 'Beep!', log );
+/* =>
+    4: !
+    3: p
+    2: e
+    1: e
+    0: B
+*/
+```
+
+The invoked function is provided three arguments:
+
+-   **value**: Unicode code point.
+-   **index**: starting Unicode code point index.
+-   **str**: input string.
+
+To set the function execution context, provide a `thisArg`.
+
+```javascript
+function clbk() {
+    this.count += 1;
+}
+
+var str = '👉🏿';
+
+var ctx = {
+    'count': 0
+};
+
+forEachCodePointRight( str, clbk, ctx );
+
+var cnt = ctx.count;
+// returns 2
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var forEachCodePointRight = require( '@stdlib/string/base/for-each-code-point-right' );
+
+function log( value, index ) {
+    console.log( '%d: %s', index, value );
+}
+
+forEachCodePointRight( 'presidential election', log );
+forEachCodePointRight( 'Iñtërnâtiônàlizætiøn', log );
+forEachCodePointRight( '🌷🍕', log );
+forEachCodePointRight( '\uD834\uDD1E', log );
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->

base/for-each-code-point-right/benchmark/benchmark.js

@@ -0,0 +1,61 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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' );
+var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var pkg = require( './../package.json' ).name;
+var forEachRight = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		'Iñtërnâtiônàlizætiøn',
+		'presidential election',
+		'🐶🐮🐷🐰🐸'
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = forEachRight( values[ i%values.length ], clbk );
+		if ( typeof out !== 'string' ) {
+			b.fail( 'should return a string' );
+		}
+	}
+	b.toc();
+	if ( !isString( out ) ) {
+		b.fail( 'should return a string' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+
+	function clbk( v ) {
+		if ( typeof v !== 'string' ) {
+			b.fail( 'unexpected value' );
+		}
+	}
+});

base/for-each-code-point-right/docs/repl.txt

@@ -0,0 +1,38 @@
+
+{{alias}}( str, clbk[, thisArg] )
+    Invokes a function for each Unicode code point in a string, iterating from
+    right to left.
+
+    When invoked, the provided function is provided three arguments:
+
+    - value: code point
+    - index: starting code point index
+    - str: input string
+
+    Parameters
+    ----------
+    str: string
+        Input string over which to iterate.
+
+    clbk: Function
+        The function to invoke for each Unicode code point in the input string.
+
+    thisArg: any (optional)
+        Execution context.
+
+    Returns
+    -------
+    out: string
+        Input string.
+
+    Examples
+    --------
+    > var n = 0;
+    > function fcn() { n += 1; };
+    > {{alias}}( 'hello world!', fcn );
+    > n
+    12
+
+    See Also
+    --------
+

base/for-each-code-point-right/docs/types/index.d.ts

@@ -0,0 +1,93 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Callback invoked for each Unicode code point in a string.
+*
+* @returns result
+*/
+type Nullary<T> = ( this: T ) => any;
+
+/**
+* Callback invoked for each Unicode code point in a string.
+*
+* @param value - code point
+* @returns result
+*/
+type Unary<T> = ( this: T, value: string ) => any;
+
+/**
+* Callback invoked for each Unicode code point in a string.
+*
+* @param value - code point
+* @param index - starting code point index
+* @returns result
+*/
+type Binary<T> = ( this: T, value: string, index: number ) => any;
+
+/**
+* Callback invoked for each Unicode code point in a string.
+*
+* @param value - code point
+* @param index - starting code point index
+* @param str - input string
+* @returns result
+*/
+type Ternary<T> = ( this: T, value: string, index: number, str: string ) => any;
+
+/**
+* Callback invoked for each Unicode code point in a string.
+*
+* @param value - code point
+* @param index - starting code point index
+* @param str - input string
+* @returns result
+*/
+type Callback<T> = Nullary<T> | Unary<T> | Binary<T> | Ternary<T>;
+
+/**
+* Invokes a function for each Unicode code point in a string, iterating from right to left.
+*
+* ## Notes
+*
+* -   When invoked, the provided function is provided three arguments:
+*
+*     -   **value**: code point.
+*     -   **index**: starting code point index.
+*     -   **str**: input string.
+*
+* @param str - input string
+* @param clbk - function to invoke
+* @param thisArg - execution context
+* @returns input string
+*
+* @example
+* function log( value, index ) {
+*     console.log( '%d: %s', index, value );
+* }
+*
+* forEachRight( 'Hello, World!', log );
+*/
+declare function forEachRight<T = unknown>( str: string, clbk: Callback<T>, thisArg?: ThisParameterType<Callback<T>> ): string;
+
+
+// EXPORTS //
+
+export = forEachRight;