https://www.stadt-remseck.de/bundles/hitcomfrontend/js/polyfills/Array.prototype.reduce.min.js

1/**
2 * Array.prototype.reduce() polyfill
3 * https://vanillajstoolkit.com/polyfills/arrayreduce/
4 * Adapted from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce
5 * @author Chris Ferdinandi
6 * @license MIT
7 */
8if(!Array.prototype.reduce)Array.prototype.reduce=function(callback){if(null===this)throw new TypeError("Array.prototype.reduce called on null or undefined");if("function"!==typeof callback)throw new TypeError(callback+" is not a function");var value,o=Object(this),len=o.length>>>0,k=0;if(arguments.length>=2)value=arguments[1];else{for(;k<len&&!(k in o);)k++;if(k>=len)throw new TypeError("Reduce of empty array with no initial value");value=o[k++]}for(;k<len;){if(k in o)value=callback(value,o[k],k,o);k++}return value};