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About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

Right Pad

NPM version Build Status Coverage Status

Right pad a string.

Usage

import rpad from 'https://cdn.jsdelivr.net/gh/stdlib-js/string-right-pad@esm/index.mjs';

rpad( str, len[, pad] )

Right pads a string such that the padded string has a length of at least len.

var str = rpad( 'a', 5 );
// returns 'a    '

By default, an input string is padded with spaces. To pad with a different character or sequence of characters, provide a pad string.

var str = rpad( 'beep', 10, 'p' );
// returns 'beeppppppp'

str = rpad( 'beep', 12, 'boop' );
// returns 'beepboopboop'

Notes

  • An output string is not guaranteed to have a length of exactly len, but to have a length of at least len. To generate a padded string having a length equal to len

    var str = rpad( 'beep', 10, 'boop' );
    // returns 'beepboopboop' => length 12
    
    str = str.substring( 0, 10 );
    // returns 'beepboopbo' => length 10

Examples

<!DOCTYPE html>
<html lang="en">
<body>
<script type="module">

import round from 'https://cdn.jsdelivr.net/gh/stdlib-js/math-base-special-round@esm/index.mjs';
import randu from 'https://cdn.jsdelivr.net/gh/stdlib-js/random-base-randu@esm/index.mjs';
import rpad from 'https://cdn.jsdelivr.net/gh/stdlib-js/string-right-pad@esm/index.mjs';

A69C

var str = 'beep';
var n;
var i;

for ( i = 0; i < 100; i++ ) {
    n = round( randu()*10.0 ) + str.length;
    console.log( rpad( str, n, 'p' ) );
}

</script>
</body>
</html>

See Also


Notice

This package is part of stdlib, a standard library with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

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License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.

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