<input type="button" value="提交" onclick="javascript:check()"/> </form> Javascript: 复制代码代码如下: function check(){ var radio = document.getElementsByName("xingbie"); var checkbox = document.getElementsByName("h
If you want to add new values to this default whiteList you can do the following: Copy var myDefaultWhiteList = $.fn.tooltip.Constructor.DEFAULTS.whiteList // To allow table elements myDefaultWhiteList.table = [] // To allow td elements and data-option attributes on td elements myDefaultWhi...
/** * 每当输入框有变化的时候计算总分数和总题数 * */ handleInputBlur = () => { console.log("进入onChange函数"); const { form } = this.props let values = {} values = form.getFieldsValue() console.log(values); delUndefined(values) ...代码省略javascriptantantd 有用关注1收藏 回复 ...
varformData =newFormData(myForm); // 获取某个控件的值 formData.get('username')// "" // 设置某个控件的值 formData.set('username','张三'); formData.get('username')// "张三" 2.2、实例方法 FormData 提供以下实例方法。 FormData.get(ke...
usually<form>or<input>data. Here the data fetched is stored in form of array of objects by serializing the form values. It is necessary for this method that the input field must contain 'name' attribute in it. The 'value' must be given to the element in order to get the data of it...
If you want to add new values to this default whiteList you can do the following: Copy var myDefaultWhiteList = $.fn.tooltip.Constructor.DEFAULTS.whiteList // To allow table elements myDefaultWhiteList.table = [] // To allow td elements and data-option attributes on td elements myDefaultWhi...
{returnthis.has(key)?items[key]:undefined;}// 列表返回字典值this.values=function(){varvalues=[];for(varkinitems){if(this.has(k)){values.push(items[k])}}returnvalues;}// 获取全部键名this.keys=function(){returnObject.keys(items);}// 获取私有变量itemsthis.getItems=function(){returnitems...
document.form1.threeChar.value + " is not valid."); return false; } } 「switch 语句节」switch 语句允许一个程序求一个表达式的值并且尝试去匹配表达式的值到一个 case 标签。如果匹配成功,这个程序执行相关的语句。switch 语句如下所示: switch (expression) { ...
Disallows duplicate property names or parameter values.Strict mode throws an error when it detects a duplicate named property in an object (e.g.,var object = {foo: "bar", foo: "baz"};) or a duplicate named argument for a function (e.g.,function foo(val1, val2, val1){}), thereby...
HTML form validation can be done by JavaScript. If a form field (fname) is empty, this function alerts a message, and returns false, to prevent the form from being submitted: JavaScript Example functionvalidateForm() { letx = document.forms["myForm"]["fname"].value; ...