form的序列化，即将表单中的键值序列化为可提交的字符串
表单
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方法一
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function serializeform1(form){
var setForm = "";
for(var key in form){
if(form.hasOwnProperty(key)){
setForm += '"'+form[key].name+'"'+':'+'"'+form[key].value + '"'+',';
}
}
setForm = "{" + setForm.slice(0,setForm.length -1) + "}";
console.log(setForm);
// console.log(JSON.parse(setForm));
return JSON.parse(setForm);
}
// 调用
var oForm = document.getElementById('target');
console.log(serializeform3(oForm));
结果：
方法二
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function serializeform2(form) {
var parts = [];
for (var i = 0,i1 = form.elements.length; i < i1; i++) {
var field = form.elements[i];
switch (field.type) {
case 'select-one':
case 'select-multiple':
if (field.type.length) {
for (var j = 0,j1 = field.options.length; j < j1; j++) {
var option = field.options[j];
if (option.selected) {
var optionValue = '';
if (option.hasAttribute('value') && option.attributes['value'].specified) {
//specified表明是否有此属性，有的话返回true，若定义了此属性但尚未添加到元素中也返回true。
optionValue = option.value;
} else {
optionValue = optionValue.text;
}
parts.push(encodeURIComponent(field.name) + '=' + encodeURIComponent(optionValue));
}
}
}
break;
case undefined:
case 'file':
case 'submit':
case 'reset':
case 'button':
break;
case 'radio':
case 'checkBox':
if(!field.checked){
break;
}else{
parts.push(encodeURIComponent(field.name) + '=' + encodeURIComponent(field.dataset['index']));
break;
}
default:
if(field.name.length){
parts.push(encodeURIComponent(field.name) + '=' + encodeURIComponent(field.value));
}
}
}
return parts.join('&');
}
// 调用
var oForm = document.getElementById('target');
console.log(serializeform2(oForm));
结果：
方法三
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function serializeform3(form){
if(!form||form.tagName.toupperCase()!='FORM'){
return false;
}
var res=[];
var tag,tagType,tagVal,tagName;
for(var i=0;idio'|'checkBox']/g;
var reg3=/['select']/g;
if(reg1.test(tagType)){
res.push(encodeURIComponent(tagName)+"="+encodeURIComponent(tagVal));
}else if(reg2.test(tagType)&&tag.checked){
res.push(encodeURIComponent(tagName)+"="+encodeURIComponent(tagVal));
}else if(reg3.test(tagType)){
for(var j=0;j// 调用
var oForm = document.getElementById('target');
console.log(serializeform3(oForm));
var oForm = document.getElementById('target');
console.log(serializeform3(oForm));
结果：
内容啦，希望对大家有所帮助~
