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Normalize an index to the interval
[0,max].
To use in Observable,
normalizeIndex = require( 'https://cdn.jsdelivr.net/gh/stdlib-js/ndarray-base-normalize-index@umd/browser.js' )To vendor stdlib functionality and avoid installing dependency trees for Node.js, you can use the UMD server build:
var normalizeIndex = require( 'path/to/vendor/umd/ndarray-base-normalize-index/index.js' )To include the bundle in a webpage,
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/ndarray-base-normalize-index@umd/browser.js"></script>If no recognized module system is present, access bundle contents via the global scope:
<script type="text/javascript">
(function () {
window.normalizeIndex;
})();
</script>Normalizes an index to the interval [0,max].
var idx = normalizeIndex( 2, 10 );
// returns 2
idx = normalizeIndex( -5, 10 );
// returns 6If provided an out-of-bounds index, the function returns -1.
var idx = normalizeIndex( 15, 10 );
// returns -1
idx = normalizeIndex( -15, 10 );
// returns -1<!DOCTYPE html>
<html lang="en">
<body>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/random-base-discrete-uniform@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/ndarray-base-normalize-index@umd/browser.js"></script>
<script type="text/javascript">
(function () {
var idx;
var out;
var i;
for ( i = 0; i < 100; i++ ) {
idx = discreteUniform( -20, 20 );
out = normalizeIndex( idx, 15 );
console.log( '%d => [%d,%d] => %d', idx, 0, 15, out );
}
})();
</script>
</body>
</html>This package is part of stdlib, a standard library for JavaScript and Node.js, 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.
See LICENSE.
Copyright © 2016-2024. The Stdlib Authors.