159 lines
4.2 KiB
JavaScript
159 lines
4.2 KiB
JavaScript
|
|
export default class Validation {
|
|
/*
|
|
isNullOrWhitespace(v) {
|
|
let txt = JSON.stringify(v).replace('/\s\g', '');
|
|
return (txt == '' || 'null');
|
|
}
|
|
*/
|
|
|
|
static isEmpty(object) {
|
|
|
|
let isEmpty = true;
|
|
|
|
if (object !== null && object !== "null" && object !== undefined && object !== "undefined") {
|
|
|
|
if (object.length == undefined) {
|
|
isEmpty = false; // object exists but isn't a collection
|
|
}
|
|
else if (typeof object === "function") {
|
|
isEmpty = false; // object is reference
|
|
}
|
|
else { // string or collection
|
|
|
|
let isString = (typeof object == "string");
|
|
|
|
if (isString) object = object.trim();
|
|
|
|
if (object.length > 0) {
|
|
|
|
if (isString) {
|
|
isEmpty = false; // String greater than length 0
|
|
}
|
|
else {
|
|
|
|
if (typeof object[0] != "string") {
|
|
isEmpty = false;
|
|
}
|
|
else {
|
|
for(let i = 0; i < object.length; i++) {
|
|
if (object[i] != "") {
|
|
isEmpty = false;
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return isEmpty;
|
|
}
|
|
|
|
static isValidNumber(value, positiveOnly) {
|
|
return !Validation.isEmpty(value) && !isNaN(value) && (!positiveOnly || parseFloat(value) > 0);
|
|
}
|
|
|
|
static getDataContentType(params) {
|
|
|
|
var data = null;
|
|
var contentType = '';
|
|
|
|
if (!Validation.isEmpty(params)) {
|
|
|
|
if (typeof params === "string") {
|
|
data = params;
|
|
contentType = "application/x-www-form-urlencoded; charset=UTF-8";
|
|
}
|
|
else {
|
|
data = JSON.stringify(params);
|
|
contentType = "application/json; charset=UTF-8";
|
|
}
|
|
}
|
|
|
|
return { Data: data, ContentType: contentType };
|
|
}
|
|
|
|
static arrayContainsItem(array, itemValue) {
|
|
|
|
var hasItem = false;
|
|
|
|
if (!Validation.isEmpty(array) && !Validation.isEmpty(itemValue)) {
|
|
|
|
var isJQueryElementArray = array[0] instanceof jQuery;
|
|
|
|
if (isJQueryElementArray) {
|
|
|
|
for (let i = 0; i < array.length; i++) {
|
|
|
|
if (document.querySelectorAll(array[i]).is(itemValue)) {
|
|
hasItem = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
|
|
var isDate = array[0] instanceof Date;
|
|
|
|
if (isDate) {
|
|
|
|
for (let i = 0; i < array.length; i++) {
|
|
|
|
if (array[i].getTime() === itemValue.getTime()) {
|
|
hasItem = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
|
|
for (let i = 0; i < array.length; i++) {
|
|
|
|
if (array[i] == itemValue) {
|
|
hasItem = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return hasItem;
|
|
}
|
|
|
|
static dictHasKey(d, k) {
|
|
return (k in d);
|
|
}
|
|
static areEqualDicts(dict1, dict2) {
|
|
const keys1 = Object.keys(dict1);
|
|
const keys2 = Object.keys(dict2);
|
|
|
|
if (keys1.length !== keys2.length) {
|
|
return false;
|
|
}
|
|
|
|
for (let key of keys1) {
|
|
if (dict1[key] !== dict2[key]) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static imageExists(url, callback) {
|
|
|
|
var img = new Image();
|
|
|
|
img.onload = function() { callback(true); };
|
|
img.onerror = function() { callback(false); };
|
|
img.src = url;
|
|
}
|
|
|
|
static toFixedOrDefault(value, decimalPlaces, defaultValue = null) {
|
|
return Validation.isValidNumber(value) ? parseFloat(value).toFixed(decimalPlaces) : defaultValue;
|
|
}
|
|
}
|