用正则表达式限制只能输入数字和英文:οnkeyup="value=value.replace(/[/W]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^/d]/g,''))" 数字 <mce:script type="text/javascript"><!-- function check() { if(!isNaN(document.all.form.str.value))...
Last week, I shared how tocheck if an input is empty with CSS. Today, let’s talk about the same thing, but with JavaScript. It’s much simpler. Here’s what we’re building: Events to validate the input If you want to validate the input when a user types into the field, you ca...
1、function checked(){ var isChecked = false; $("input[@type=checkbox]").each( function(){ if($(this).attr("checked")){ isChecked=true; return; } }) if(!isChecked){ alert("请至少选择一条记录进行操作!"); } return isChecked; } 2、funcion checked2{ var isChecked=$("id").at...
};// public spacereturn {// public properties, e.g. strings to translatebtn1Text:"Button 1",// public methodsinit:function () {if (Ext.Ext2 ) { btn1 =newExt.Button({renderTo:"btn1-ct",text:this.btn1Text,handler: btn1Handler }); }else { btn1 =newExt.Button("btn1-ct", {...
if (element.nextSibling) { element.nextSibling.focus(); } }; I made OTP input in React You can see this image. One line is one input and I have 6 inputs. The inputs work that is not a problem. I need when the ponent opens, the first input must be autofocus. When I use<input...
(2) ["JavaBeans", "Beans", index: 36, input: "JavaScript is more fun than Java or JavaBeans!", groups: undefined] \g 是一个迭代器,每运行一次生成下一个 pattern.exec(str); ["JavaScript", index: 0, input: "JavaScript is more fun than Java or JavaBeans!", groups: undefined] ...
setName(''); return false; } return name; } // good function checkName(hasName) { if (hasName === 'test') { return false; } const name = getName(); if (name === 'test') { this.setName(''); return false; } return name; }...
For MapImageLayer the type is always "map-image". MapImageLayer url String|null|undefined The URL to the REST endpoint of the map service. MapImageLayer useViewTime Boolean Determines if the time enabled layer will update its temporal data based on the view's timeExtent. MapImageLayer ver...
If provided, the extent and projection of the map is set to the properties of Extent. Once the projection is set, all layers must be able to be drawn in the defined projection. The tiling scheme of an ArcGISTiledMapServiceLayer must match the projection of the map. The projection of the ...
<input type="submit" name="next" value="Next >"> </p> I am using the following javascript code to check for nothing being entered in a form and it is not working. Can anyone suggest a reason? function validateForm() { var a=document.getElementById("quiz_01").value; ...