지식 보관 지식 보관

var url = "/myImage.png";var img = document.querySelector("img"); function getImage(url) {var req = new XMLHttpRequest();req.open("GET", url, true);req.responseType = "blob"; req.onload = function(re) {hideLoadindBar();re.preventDefault(re);var blobData = req.response;img.src = URL.createObjectURL(blobData);};req.send(); showLoadingBar();} img.addEventListener("onload", function(e) {URL.revokeOb..

var arrUtil = {};arrUtil = { subtractArr: function (arr1, arr2, key) { var thisWG = this; var newArr = arr1.filter(function (item) { return !thisWG.isFound(item, arr2, key);; }); return newArr; }, leftArr: function (arr1, arr2, key) { var thisWG = this; var newArr = arr1.filter(function (item) { return thisWG.isFound(item, arr2, key); }); return newArr; }, isFound: function (item, arr, key) { va..