jagomf

/**
 * Prompts to choose a file from filesystem, converts to base64 (in background), and returns base64 when conversion ends.
 * @param {number} maxFileSize Maximum size of file.
 * @param {boolean} multiple Indicates whether to accept one or more files.
 * @param {string} contentType MIME type of media to require from filesystem (can be 'image/*', etc).
 * @param {string} source (For mobile devices only) If set to 'camera', tells device to capture image from camera.
 * @returns {Promise} A Promise that resolves when files are read; rejects with error text if files are heavier than allowed.
 */
onClickSendMedia(maxFileSize, multiple = false, contentType = '*/*', source) {
	return new Promise((resolve, reject) => {

jagomf

/*
var fruits = ['apple', 'orange', 'banana', 'pear'],
    middleJoiner = ', ',
    endJoiner = ' and ',
    result = listJoiner(fruits, middleJoiner, endJoiner);
*/
// result will be this string: 'apple, orange, banana and pear'

//Iterative way
function listJoinerIter(elems, middleJoiner, endJoiner) {