@ithaka/bonsai/js/utils/urls.js

ITHAKA core styling

"use strict";

const _removeHash = (url) => {
        if(url) {
            return url.split("#")[0];
        }
    },
    _getHash = (url) => {
        let parts = url.split("#");
        return parts.length === 2 ? "#" + parts[1] : "";
    },
    _removeQuery = (url) => {
        if(url) {
            return url.split("?")[0];
        }
    },
    _getQuery = (url) => {
        let parts = url.split("?");
        return parts.length === 2 ? _removeHash(parts[1]) : "";
    };

export function updateUrlParameter(origUrl, key, value) {

    if (!origUrl || !key || !value){
        throw new Error("Incorrect number of parameters passed, need 'url', 'key' and 'value'");
    }

    key = encodeURIComponent(key);
    value = encodeURIComponent(value);

    let params,
        keyExists = false;

    const currentQueryString = _getQuery(origUrl);

    if(currentQueryString) {
        params = currentQueryString.split("&");

        params.forEach(function(param, index) {
            let pair = param.split("=");
            if(pair[0] === key) {
                pair[1] = value;
                params[index] = pair.join("=");
                keyExists = true;
            }
        });
    } else {
        params = [];
    }

    if(!keyExists) {
        params = params.concat([key, value].join("="));
    }

    const baseUrl = _removeQuery(origUrl);
    const hash = _getHash(origUrl);

    return `${baseUrl}?${params.join("&")}${hash}`;
}

export function getUrlParameterValue(origUrl, key) {
    if (!origUrl || !key){
        throw new Error("Incorrect number of parameters passed, need 'url' and 'key'");
    }

    let currentQueryString,
        params,
        pair,
        targetVal = false;

    currentQueryString = _getQuery(origUrl);

    if(currentQueryString) {
        params = currentQueryString.split("&");
        $.each(params, function(index, param) {
            pair = param.split("=");
            if(pair[0] === key) {
                targetVal = pair[1];
                return false;
            }
        });
    }

    return targetVal;
}