added utility classes to release

src/com/utils/DataUtils.js

@@ -0,0 +1,92 @@
+export default class DataUtils {
+	//--------------------------
+	// constructor
+	//--------------------------
+	constructor() {}
+	//--------------------------
+	// methods
+	//--------------------------
+
+	imgLoad(url) {
+		'use strict';
+		// Create new promise with the Promise() constructor;
+		// This has as its argument a function with two parameters, resolve and reject
+		return new Promise(function(resolve, reject) {
+			// Standard XHR to load an image
+			var request = new XMLHttpRequest();
+			request.open('GET', url);
+			request.responseType = 'blob';
+			// When the request loads, check whether it was successful
+			request.onload = function() {
+				if (request.status === 200) {
+					// If successful, resolve the promise by passing back the request response
+					resolve(request.response);
+				} else {
+					// If it fails, reject the promise with a error message
+					reject(
+						new Error(
+							"Image didn't load successfully; error code:" + request.statusText
+						)
+					);
+				}
+			};
+			request.onerror = function() {
+				// Also deal with the case when the entire request fails to begin with
+				// This is probably a network error, so reject the promise with an appropriate message
+				reject(new Error('There was a network error.'));
+			};
+			// Send the request
+			request.send();
+		});
+	}
+	loadImage(src) {
+		'use strict';
+		let self = this;
+		return new Promise(function(resolve, reject) {
+			// Get a reference to the body element, and create a new image object
+			var myImage = new Image();
+			myImage.crossOrigin = ''; // or "anonymous"
+			// Call the function with the URL we want to load, but then chain the
+			// promise then() method on to the end of it. This contains two callbacks
+			self.imgLoad(src).then(
+				function(response) {
+					// The first runs when the promise resolves, with the request.reponse specified within the resolve() method.
+					var imageURL = window.URL.createObjectURL(response);
+					resolve(imageURL);
+					//$('background-content').setStyle('background-image', 'url('+imageURL+')') //myImage.src = imageURL;
+					//console.log(imageURL);
+					//body.appendChild(myImage);
+					// The second runs when the promise is rejected, and logs the Error specified with the reject() method.
+				},
+				function(Error) {
+					reject(Error);
+				}
+			);
+		});
+	}
+
+	/**
+	 * Create a function to convert the serialize and convert the form data to JSON
+	 * @param : $('#form_example');
+	 * @return a JSON Stringify
+	 */
+	formDataToJSON(form) {
+		let object = {};
+		let formData = new FormData(form);
+		formData.forEach((value, key) => {
+			if (!object.hasOwnProperty(key)) {
+				object[key] = value;
+				return;
+			}
+			if (!Array.isArray(object[key])) {
+				object[key] = [object[key]];
+			}
+			object[key].push(value);
+		});
+		//let json = JSON.stringify(object);
+		return object;
+	}
+	//--------------------------
+	// event handlers
+	//--------------------------
+}

src/com/utils/StringUtils.js

@@ -0,0 +1,68 @@
+class StringUtils {
+	//--------------------------
+	// constructor
+	//--------------------------
+	constructor() {}
+	//--------------------------
+	// methods
+	//--------------------------
+	cleanString(string) {
+		var clean = string
+			.replace(/(^\-+|[^a-zA-Z0-9\/_| -]+|\-+$)/g, '')
+			.toLowerCase()
+			.replace(/[\/_| -]+/g, '-');
+		return clean;
+	}
+
+	decodeHTML(string, quote_style) {
+		var optTemp = 0,
+			i = 0,
+			noquotes = false;
+		if (typeof quote_style === 'undefined') {
+			quote_style = 2;
+		}
+		string = string
+			.toString()
+			.replace(/&lt;/g, '<')
+			.replace(/&gt;/g, '>');
+		var OPTS = {
+			ENT_NOQUOTES: 0,
+			ENT_HTML_QUOTE_SINGLE: 1,
+			ENT_HTML_QUOTE_DOUBLE: 2,
+			ENT_COMPAT: 2,
+			ENT_QUOTES: 3,
+			ENT_IGNORE: 4
+		};
+		if (quote_style === 0) {
+			noquotes = true;
+		}
+		if (typeof quote_style !== 'number') {
+			// Allow for a single string or an array of string flags
+			quote_style = [].concat(quote_style);
+			for (i = 0; i < quote_style.length; i++) {
+				// Resolve string input to bitwise e.g. 'PATHINFO_EXTENSION' becomes 4
+				if (OPTS[quote_style[i]] === 0) {
+					noquotes = true;
+				} else if (OPTS[quote_style[i]]) {
+					optTemp = optTemp | OPTS[quote_style[i]];
+				}
+			}
+			quote_style = optTemp;
+		}
+		if (quote_style & OPTS.ENT_HTML_QUOTE_SINGLE) {
+			string = string.replace(/&#0*39;/g, "'"); // PHP doesn't currently escape if more than one 0, but it should
+			// string = string.replace(/&apos;|&#x0*27;/g, "'"); // This would also be useful here, but not a part of PHP
+		}
+		if (!noquotes) {
+			string = string.replace(/&quot;/g, '"');
+		}
+		// Put this in last place to avoid escape being double-decoded
+		string = string.replace(/&amp;/g, '&');
+		return string;
+	}
+
+	//--------------------------
+	// event handlers
+	//--------------------------
+}
+export default StringUtils;