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The method is as follows:
1. Sometimes I want to be lazy. There is a large amount of form submission data on the page, and it is troublesome to obtain it individually every time. There is also a lot of code redundancy, so a method is encapsulated.
2. The form element must have a name attribute. The name attribute is the field data submitted to the backend.
3. html code
<h3>下拉框</h3> <select name="sel" id="sel" class="query"> <option value ="sel-1">sel-1</option> <option value ="sel-2">sel-2</option> </select> <h3>输入框</h3> <input type="text" name="text1" class="query" value="hello" /> <input type="text" name="text2" class="query" value="word" /> <h3>密码框</h3> <input type="password" name="password" class="query" value="123456" /> <h3>单选框</h3> 单选1<input type="radio" name="radio" class="query" value="r1" checked /> 单选2<input type="radio" name="radio" class="query" value="r2" checked/> 单选3<input type="radio" name="radio" class="query" value="r3" /> <h3>复选框</h3> 复选框1<input type="checkbox" name="check" id="" class="query" value="c1" checked/> 复选框2<input type="checkbox" name="check" id="" class="query" value="c2" /> 复选框3<input type="checkbox" name="check" id="" class="query" value="c3" checked/> <h3>search</h3> <input type="range" name="range" id="" class="query" value="" /> <input type="color" name="color" id="" class="query" value="" /> <h3> <button type="button" id="save"> 提交 </button> </h3>
4. The JQ library is introduced here.
4.1. js code block
Instructions for use: Just pass in the class name when calling the method.
// 封装方法,获取到form表单的数据。使用此方法,表单元素必须存在那么属性。 //el:元素的class名称。 function getParameter(el){ var obj={}; $(el).each(function(index,item){ // 判断元素的类型 if(item.type=="text" || item.type=="password" || item.type=="select-one" || item.type=="tel" || item.type=="search" || item.type=="range" || item.type=="number" || item.type=="month" || item.type=="email" || item.type=="datetime-local" || item.type=="datetime" || item.type=="date" || item.type=="color"){ //获取到name的值,name的值就是向后台传递的数据 obj[$(this).attr("name")]=$(this).val(); }else if(item.type=="checkbox"){ var stamp=false; if($(this).attr("name") && !stamp){ stamp=false; // 获取到复选框选中的元素 var checkboxEl=$("input[name="+$(item).attr('name')+"]:checked"); if(checkboxEl){ var checkboxArr=[]; // 取出复选框选中的值 checkboxEl.each(function(idx,itm){ checkboxArr.push($(itm).val()); }); obj[$(this).attr("name")]=checkboxArr.join(","); } } }else if(item.type=="radio"){ // 获取到单选框选中的值 var radio_val=$("input[name="+$(item).attr('name')+"]:checked").val(); if(radio_val){ obj[$(item).attr("name")]=radio_val; } } }); return obj; } // 调用方法 $("#save").click(function(){ var parameter=getParameter(".query"); console.log(parameter); });
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