x-http-client/lib/jsonp/buildCallbackName.js

An http client to simplify sending requests (HTTP & JSONP) in the browser.

/**
 * The function to create JSONP callback name.
 *
 * @param {RequestOptions} options The request options.
 * @returns {string} Returns the callback name.
 */
function buildCalllbackName(options) {
    var callbackName;

    do {
        callbackName = options.jsonpCallbackName.call(null, options);
    } while (callbackName in window);

    window[callbackName] = null;

    return callbackName;
}

module.exports = buildCalllbackName;