<el-option v-for="item in arrayOptions" :key="item.key" :value="item.key" :label="item.text"> </el-option> </el-select> 因为我们用item.key作为option的value,item.key 是json中的值, 此时option的value是number类型,v-model绑定的seletValue也必须是number类型 例如 seletValue=1 3.对象 const...
functionrec(){varmymessage=confirm("你是女的吗?");if(mymessage==true){document.write("你是女士!");}else{document.write("你是男士!");}}<body><input name="button"type="button"onClick="rec()"value="点击我,弹出确认对话框"/></body> 当点击“点击我,弹出确认对话框”按钮后,就会有“你...
" 全选复选框 " 元素 直接通过 调用document.getElementById('j_cbAll')代码即可获得 ; " 普通复选框 " 元素 都定义在 table 表格的<tbody id="j_tb">标签下 , 先通过document.getElementById('j_tb')获取<tbody id="j_tb">标签元素 , 然后 通过 标签选择器 获取 tbody 标签下的 input 标签元素 ...
2.4.1、创建 var arrayObj = new Array(); var arrayObj = new Array([size]); var arrayObj = new Array([element0[, element1[, ...[, elementN]]]); 示例: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 vararray11=newArray();//空数组vararray12=newArray(5);//指定长度,可越界var...
1、向Select里添加Option //IE only,FF不支持Add方法 functionfnAddItem(text,value) { varselTarget=document.getElementById("selID"); selTarget.Add(newOption("text","value")); } //IE FF both OK functionfnAdd(oListbox, sName, sValue) ...
tab('show') // Select last tab $('#myTabs li:eq(2) a').tab('show') // Select third tab (0-indexed) Markup You can activate a tab or pill navigation without writing any JavaScript by simply specifying data-toggle="tab" or data-toggle="pill" on an element. Adding the nav and ...
element.querySelector("section[role=main]"); // Listen for the current index to change and update the HTML var viewModel = WinJS.Binding.as({ current: 0, person: null }); WinJS.Binding.processAll(section, viewModel); viewModel.bind("current", function (newValue, oldValue) { viewModel...
⚠️ 只有document.getElementById,没有anyElem.getElementById getElementById方法只能被在document对象上调用。它会在整个文档中查找给定的id。 querySelectorAll 到目前为止,最通用的方法是elem.querySelectorAll(css),它返回elem中与给定 CSS 选择器匹配的所有元素。
tab('show') // Select last tab $('#myTabs li:eq(2) a').tab('show') // Select third tab (0-indexed) Markup You can activate a tab or pill navigation without writing any JavaScript by simply specifying data-toggle="tab" or data-toggle="pill" on an element. Adding the nav and ...
Based on the above code, if there were 10 input elements, clickinganyof them would display “This is element #10”! This is because, by the timeonclickis invoked foranyof the elements, the aboveforloop will have completed and the value ofiwill already be 10 (forallof them). ...