convertUrlParametersToObj: function()

in src/apache-unomi-tracker.js [831:859]

• 27 lines of code
• 7 McCabe index (conditional complexity)

        convertUrlParametersToObj: function (searchString) {
            if (!searchString) {
                return null;
            }

            return searchString
                .replace(/^\?/, '') // Only trim off a single leading interrobang.
                .split('&')
                .reduce((result, next) => {
                    if (next === '') {
                        return result;
                    }
                    let pair = next.split('=');
                    let key = decodeURIComponent(pair[0]);
                    let value = typeof pair[1] !== 'undefined' && decodeURIComponent(pair[1]) || undefined;
                    if (Object.prototype.hasOwnProperty.call(result, key)) { // Check to see if this property has been met before.
                        if (Array.isArray(result[key])) { // Is it already an array?
                            result[key].push(value);
                        } else { // Make it an array.
                            result[key] = [result[key], value];
                        }
                    } else { // First time seen, just add it.
                        result[key] = value;
                    }

                    return result;
                }, /** @type Record<string, Array<string | undefined> | string | undefined> */({})
                );
        },