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Implementing mutual conversion of form elements to JSON by constructing AJAX parameters
Implementing mutual conversion of form elements to JSON by constructing AJAX parameters
This article mainly introduces the related introduction of JSON conversion of form elements by constructing AJAX parameters. Friends in need can refer to
ajax submission server data to sort out the conversion methods.
HTML：
<form id="fm" name="fm" action=""> <input name="UserName" type="text" value="UserName1"/> </form> <input name="UserId" id="UserId" type="text" value="UserId1"/>
1. Convert form elements to QueryString
var q = $('#fm,#UserId').serialize(); //q = UserName=UserName1&UserId=UserId1
2. Convert strings to JSON
var obj = jQuery.parseJSON('{"name":"John"}');
alert( obj.name === "John" );You can use the jquery-json plug-in to achieve conversion and directly quote the example
var thing = {plugin: 'jquery-json', version: 2.3};
var encoded = $.toJSON( thing );
// '{"plugin":"jquery-json","version":2.3}'
var name = $.evalJSON( encoded ).plugin;
// "jquery-json"
var version = $.evalJSON(encoded).version;
// 2.33. Convert form elements to Name, Value array
var arr = $("#fm,#UserId").serializeArray();
/*[
{name: 'UserName', value: '"UserName"1'},
{name: 'UserId', value: 'UserId'}
] */4. Convert form elements to JSON
$.fn.serializeObject = function()
{
var o = {};
var a = this.serializeArray();
$.each(a, function() {
if (o[this.name] !== undefined) {
if (!o[this.name].push) {
o[this.name] = [o[this.name]];
}
o[this.name].push(this.value || '');
} else {
o[this.name] = this.value || '';
}
});
return o;
};
var obj = $('form').serializeObject();
/*obj: Object
UserId: "UserId1"
UserName: "UserName1"
__proto__: Object*/5. JSON2FORM
$.getJSON('url_to_file', function(data) {
for (var i in data) {
$('input[name="'+i+'"]').val(data[i]);
}
}data = {
"Name":"Emkay Entertainments",
"Address":"Nobel House, Regent Centre",
"Contact":"Phone"
}
$('p#data').loadJSON(data);
<p id="data">
<h1 id="Name">Emkay Entertainments</h1>
<label for="Address">Address:</label>
<span id="Address">Nobel House, Regent Centre</span>
<label for="Contact">Contact by:</label>
<span id="Contact">Phone</span>
</p>The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.
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