upload_button_select.classList.remove('loading'); upload_progress.style.display = 'none'; upload_progress_value.style.width = `0%`; } }); upload_button_select.addEventListener('click', function () { if (checkIsDisable(this)) return; upload_inp.click(); });})();复制代码 大文件上传 ...
includes(i)) { items[i].classList.add('hide'); } else { items[i].classList.remove('hide'); } } setDataList([...data.tests[0].data]); const board = new Array(169); board.fill(-1); const size = data.size || 13; const v = (13 - size) / 2; const range = [ v, v...
str.search(str1) //返回作为参数传递的当前字符床中第一次出现字符串的位置 没有就返回-1 原生js判断某个元素是否有指定的class名的几种方法 varp = document.getElementsByTagName('p');for(vari =0;i
function multiplyMany(size, listOfMatrices) { if (IsDebug && (listOfMatrices.length < 2)) { throw 'multiplication expected two or more matrices'; } var result = multiply(listOfMatrices[0], listOfMatrices[1], size); var next = 2; while (next < listOfMatrices.length) { result = mult...
事件的本质是程序各个组成部分之间的一种通信方式,也是异步编程的一种实现。DOM 支持大量的事件,本章开始介绍DOM 的事件编程。 1、概述 DOM 的事件操作(监听和触发),都定义在EventTarget接口。所有节点对象都部署了这个接口,其他一些需要事件通信的浏览器内置对象(比如,XMLHttpRequest、AudioNode、AudioContext)也部署了...
首先调用_classCallCheck来检查是否通过new函数来调用函数,如果有 person(实例对象) instanceof Perent 返回的肯定是true,如果没有返回时false,报错。 将class内部的变量和函数赋给this 执行constuctor内部的逻辑。 return this (构造函数默认在最后我们做了)。
在HTML中表示类名的属性为class,但是在JS中,属性名就变为了className,classList。因为class在JS中是关键字。 eg:日间模式与夜间模式 <!DOCTYPE html> Document .day{ background-color: pink; color: black; } .night{ background-color: black; color: white...
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Basically, List is to Collection as View is to Model. mikanda/sync-model— Synchronize a model with data from a DOM element. yields/is-floating - Check if element is floating. yyx990803/vue - Intuitive MVVM for building interactive interfaces ianstormtaylor/classes - Quickly mixin class ...
Check the boxes of the polyfills or polyfill-sets you want to have in your bundle. default Included Polyfills Array.from Array.of Array.prototype.fill CustomEvent DOMTokenList DocumentFragment.prototype.append DocumentFragment.prototype.prepend