Angular中的getElementById()方法用于通过元素的id属性获取DOM元素。它返回一个表示匹配的元素的引用,如果没有找到匹配的元素,则返回null。 在switch语句中使用getElementById()方法,如果没有找到匹配的元素,它将返回null。这意味着在switch语句中使用getElementById()方法时,需要注意处理返回null的情况,以避免出现...
将getElementByClass不存在,可能要使用getElementsByClassName。但是,您可以使用其他方法(用于angular / vue / react ...模板)function stop(ta) { console.log(ta.value) // document['player'].stopMusicExt(ta.value); ta.value='';} 0 0 0 没找到需要的内容?换个关键词再搜索试试 向你...
Javascript: function show(x){ var y = document.getElementByClassName(x); y.style.display= 'block'; } function hide(x){ var y = document.getElementByClassName(x); y.style.display = 'none'; } HTML: <a h 浏览3提问于2016-04-05得票数 0 回答已采纳 1回答 javascript-单个oncl...
我在Firebug中遇到错误document.getElementByClass不是函数这是我的代码:var stopMusicExt = document.getElementByClass("stopButton"); stopButton.onclick = function() { var ta = document.getElementByClass("stopButton"); document['player'].stopMusicExt(ta.value); ta.value = ""; }; 查看完整...
// Angular框架中exportclassSomeimplementsOnInit{ngOnInit() {letdom =document.getElementById('infoArea');// 1. 获取输入框中的内容lethtml = dom.innerHTML;letval = dom.value;// 2. 打印输出console.log(html);console.log(val); } }
fileInput1.value和fileInput.value都有值打印出来,但 document.getElementById('mceu_133')的文本框是没有值的 以上方法不行 document.getElementById('mceu_133')文本框的值要等于document.getElementById('img_input');中的值,怎么使得getElementById('mceu_133')文本框有值??
by Dany Paredes May 16, 2022 Web, Angular 0 Comments Have you ever had to ask, “How do I get the value of the selected dropdown menu item in Angular?” Let’s answer that! In Angular apps, the dropdown is a typical HTML element used in forms and components to allow the users ...
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],"@angular-eslint/component-selector": ["error", {"type": "element","prefix": "cp","style": "kebab-case"} ] } }, {"files": ["*.html"],"extends": ["plugin:@angular-eslint/template/recommended"],"rules": {} }, {"files": ["*.html"],"excludedFiles": ["*inline-templat...
[Angular] @ViewChild and template #refs to get Element Ref,Wecanuse@ViewChildwithcomponent:Bydoingthis,weactuallycanaccesscomponent'spropandevents.IfwewanttogetcomponentDOMnode,whatwe