2 SerializeJSON jQuery plugin.
3 https://github.com/marioizquierdo/jquery.serializeJSON
4 version 2.8.1 (Dec, 2016)
6 Copyright (c) 2012, 2017 Mario Izquierdo
7 Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
8 and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
11 if (typeof define === 'function' && define.amd) { // AMD. Register as an anonymous module.
12 define(['jquery'], factory);
13 } else if (typeof exports === 'object') { // Node/CommonJS
14 var jQuery = require('jquery');
15 module.exports = factory(jQuery);
16 } else { // Browser globals (zepto supported)
17 factory(window.jQuery || window.Zepto || window.$); // Zepto supported on browsers as well
23 // jQuery('form').serializeJSON()
24 $.fn.serializeJSON = function (options) {
25 var f, $form, opts, formAsArray, serializedObject, name, value, parsedValue, _obj, nameWithNoType, type, keys, skipFalsy;
27 $form = this; // NOTE: the set of matched elements is most likely a form, but it could also be a group of inputs
28 opts = f.setupOpts(options); // calculate values for options {parseNumbers, parseBoolens, parseNulls, ...} with defaults
30 // Use native `serializeArray` function to get an array of {name, value} objects.
31 formAsArray = $form.serializeArray();
32 f.readCheckboxUncheckedValues(formAsArray, opts, $form); // add objects to the array from unchecked checkboxes if needed
34 // Convert the formAsArray into a serializedObject with nested keys
35 serializedObject = {};
36 $.each(formAsArray, function (i, obj) {
37 name = obj.name; // original input name
38 value = obj.value; // input value
39 _obj = f.extractTypeAndNameWithNoType(name);
40 nameWithNoType = _obj.nameWithNoType; // input name with no type (i.e. "foo:string" => "foo")
41 type = _obj.type; // type defined from the input name in :type colon notation
42 if (!type) type = f.attrFromInputWithName($form, name, 'data-value-type');
43 f.validateType(name, type, opts); // make sure that the type is one of the valid types if defined
45 if (type !== 'skip') { // ignore inputs with type 'skip'
46 keys = f.splitInputNameIntoKeysArray(nameWithNoType);
47 parsedValue = f.parseValue(value, name, type, opts); // convert to string, number, boolean, null or customType
49 skipFalsy = !parsedValue && f.shouldSkipFalsy($form, name, nameWithNoType, type, opts); // ignore falsy inputs if specified
51 f.deepSet(serializedObject, keys, parsedValue, opts);
55 return serializedObject;
58 // Use $.serializeJSON as namespace for the auxiliar functions
59 // and to define defaults
63 checkboxUncheckedValue: undefined, // to include that value for unchecked checkboxes (instead of ignoring them)
65 parseNumbers: false, // convert values like "1", "-2.33" to 1, -2.33
66 parseBooleans: false, // convert "true", "false" to true, false
67 parseNulls: false, // convert "null" to null
68 parseAll: false, // all of the above
69 parseWithFunction: null, // to use custom parser, a function like: function(val){ return parsed_val; }
71 skipFalsyValuesForTypes: [], // skip serialization of falsy values for listed value types
72 skipFalsyValuesForFields: [], // skip serialization of falsy values for listed field names
74 customTypes: {}, // override defaultTypes
76 "string": function(str) { return String(str); },
77 "number": function(str) { return Number(str); },
78 "boolean": function(str) { var falses = ["false", "null", "undefined", "", "0"]; return falses.indexOf(str) === -1; },
79 "null": function(str) { var falses = ["false", "null", "undefined", "", "0"]; return falses.indexOf(str) === -1 ? str : null; },
80 "array": function(str) { return JSON.parse(str); },
81 "object": function(str) { return JSON.parse(str); },
82 "auto": function(str) { return $.serializeJSON.parseValue(str, null, null, {parseNumbers: true, parseBooleans: true, parseNulls: true}); }, // try again with something like "parseAll"
83 "skip": null // skip is a special type that makes it easy to ignore elements
86 useIntKeysAsArrayIndex: false // name="foo[2]" value="v" => {foo: [null, null, "v"]}, instead of {foo: ["2": "v"]}
89 // Merge option defaults into the options
90 setupOpts: function(options) {
91 var opt, validOpts, defaultOptions, optWithDefault, parseAll, f;
94 if (options == null) { options = {}; } // options ||= {}
95 defaultOptions = f.defaultOptions || {}; // defaultOptions
97 // Make sure that the user didn't misspell an option
98 validOpts = ['checkboxUncheckedValue', 'parseNumbers', 'parseBooleans', 'parseNulls', 'parseAll', 'parseWithFunction', 'skipFalsyValuesForTypes', 'skipFalsyValuesForFields', 'customTypes', 'defaultTypes', 'useIntKeysAsArrayIndex']; // re-define because the user may override the defaultOptions
99 for (opt in options) {
100 if (validOpts.indexOf(opt) === -1) {
101 throw new Error("serializeJSON ERROR: invalid option '" + opt + "'. Please use one of " + validOpts.join(', '));
105 // Helper to get the default value for this option if none is specified by the user
106 optWithDefault = function(key) { return (options[key] !== false) && (options[key] !== '') && (options[key] || defaultOptions[key]); };
108 // Return computed options (opts to be used in the rest of the script)
109 parseAll = optWithDefault('parseAll');
111 checkboxUncheckedValue: optWithDefault('checkboxUncheckedValue'),
113 parseNumbers: parseAll || optWithDefault('parseNumbers'),
114 parseBooleans: parseAll || optWithDefault('parseBooleans'),
115 parseNulls: parseAll || optWithDefault('parseNulls'),
116 parseWithFunction: optWithDefault('parseWithFunction'),
118 skipFalsyValuesForTypes: optWithDefault('skipFalsyValuesForTypes'),
119 skipFalsyValuesForFields: optWithDefault('skipFalsyValuesForFields'),
120 typeFunctions: $.extend({}, optWithDefault('defaultTypes'), optWithDefault('customTypes')),
122 useIntKeysAsArrayIndex: optWithDefault('useIntKeysAsArrayIndex')
126 // Given a string, apply the type or the relevant "parse" options, to return the parsed value
127 parseValue: function(valStr, inputName, type, opts) {
130 parsedVal = valStr; // if no parsing is needed, the returned value will be the same
132 if (opts.typeFunctions && type && opts.typeFunctions[type]) { // use a type if available
133 parsedVal = opts.typeFunctions[type](valStr);
134 } else if (opts.parseNumbers && f.isNumeric(valStr)) { // auto: number
135 parsedVal = Number(valStr);
136 } else if (opts.parseBooleans && (valStr === "true" || valStr === "false")) { // auto: boolean
137 parsedVal = (valStr === "true");
138 } else if (opts.parseNulls && valStr == "null") { // auto: null
141 if (opts.parseWithFunction && !type) { // custom parse function (apply after previous parsing options, but not if there's a specific type)
142 parsedVal = opts.parseWithFunction(parsedVal, inputName);
148 isObject: function(obj) { return obj === Object(obj); }, // is it an Object?
149 isUndefined: function(obj) { return obj === void 0; }, // safe check for undefined values
150 isValidArrayIndex: function(val) { return /^[0-9]+$/.test(String(val)); }, // 1,2,3,4 ... are valid array indexes
151 isNumeric: function(obj) { return obj - parseFloat(obj) >= 0; }, // taken from jQuery.isNumeric implementation. Not using jQuery.isNumeric to support old jQuery and Zepto versions
153 optionKeys: function(obj) { if (Object.keys) { return Object.keys(obj); } else { var key, keys = []; for(key in obj){ keys.push(key); } return keys;} }, // polyfill Object.keys to get option keys in IE<9
156 // Fill the formAsArray object with values for the unchecked checkbox inputs,
157 // using the same format as the jquery.serializeArray function.
158 // The value of the unchecked values is determined from the opts.checkboxUncheckedValue
159 // and/or the data-unchecked-value attribute of the inputs.
160 readCheckboxUncheckedValues: function (formAsArray, opts, $form) {
161 var selector, $uncheckedCheckboxes, $el, uncheckedValue, f, name;
162 if (opts == null) { opts = {}; }
165 selector = 'input[type=checkbox][name]:not(:checked):not([disabled])';
166 $uncheckedCheckboxes = $form.find(selector).add($form.filter(selector));
167 $uncheckedCheckboxes.each(function (i, el) {
168 // Check data attr first, then the option
170 uncheckedValue = $el.attr('data-unchecked-value');
171 if (uncheckedValue == null) {
172 uncheckedValue = opts.checkboxUncheckedValue;
175 // If there's an uncheckedValue, push it into the serialized formAsArray
176 if (uncheckedValue != null) {
177 if (el.name && el.name.indexOf("[][") !== -1) { // identify a non-supported
178 throw new Error("serializeJSON ERROR: checkbox unchecked values are not supported on nested arrays of objects like '"+el.name+"'. See https://github.com/marioizquierdo/jquery.serializeJSON/issues/67");
180 formAsArray.push({name: el.name, value: uncheckedValue});
185 // Returns and object with properties {name_without_type, type} from a given name.
186 // The type is null if none specified. Example:
187 // "foo" => {nameWithNoType: "foo", type: null}
188 // "foo:boolean" => {nameWithNoType: "foo", type: "boolean"}
189 // "foo[bar]:null" => {nameWithNoType: "foo[bar]", type: "null"}
190 extractTypeAndNameWithNoType: function(name) {
192 if (match = name.match(/(.*):([^:]+)$/)) {
193 return {nameWithNoType: match[1], type: match[2]};
195 return {nameWithNoType: name, type: null};
200 // Check if this input should be skipped when it has a falsy value,
201 // depending on the options to skip values by name or type, and the data-skip-falsy attribute.
202 shouldSkipFalsy: function($form, name, nameWithNoType, type, opts) {
203 var f = $.serializeJSON;
205 var skipFromDataAttr = f.attrFromInputWithName($form, name, 'data-skip-falsy');
206 if (skipFromDataAttr != null) {
207 return skipFromDataAttr !== 'false'; // any value is true, except if explicitly using 'false'
210 var optForFields = opts.skipFalsyValuesForFields;
211 if (optForFields && (optForFields.indexOf(nameWithNoType) !== -1 || optForFields.indexOf(name) !== -1)) {
215 var optForTypes = opts.skipFalsyValuesForTypes;
216 if (type == null) type = 'string'; // assume fields with no type are targeted as string
217 if (optForTypes && optForTypes.indexOf(type) !== -1) {
224 // Finds the first input in $form with this name, and get the given attr from it.
225 // Returns undefined if no input or no attribute was found.
226 attrFromInputWithName: function($form, name, attrName) {
227 var escapedName, selector, $input, attrValue;
228 escapedName = name.replace(/(:|\.|\[|\]|\s)/g,'\\$1'); // every non-standard character need to be escaped by \\
229 selector = '[name="' + escapedName + '"]';
230 $input = $form.find(selector).add($form.filter(selector)); // NOTE: this returns only the first $input element if multiple are matched with the same name (i.e. an "array[]"). So, arrays with different element types specified through the data-value-type attr is not supported.
231 return $input.attr(attrName);
234 // Raise an error if the type is not recognized.
235 validateType: function(name, type, opts) {
238 validTypes = f.optionKeys(opts ? opts.typeFunctions : f.defaultOptions.defaultTypes);
239 if (!type || validTypes.indexOf(type) !== -1) {
242 throw new Error("serializeJSON ERROR: Invalid type " + type + " found in input name '" + name + "', please use one of " + validTypes.join(', '));
247 // Split the input name in programatically readable keys.
250 // "[foo]" => ['foo']
251 // "foo[inn][bar]" => ['foo', 'inn', 'bar']
252 // "foo[inn[bar]]" => ['foo', 'inn', 'bar']
253 // "foo[inn][arr][0]" => ['foo', 'inn', 'arr', '0']
254 // "arr[][val]" => ['arr', '', 'val']
255 splitInputNameIntoKeysArray: function(nameWithNoType) {
258 keys = nameWithNoType.split('['); // split string into array
259 keys = $.map(keys, function (key) { return key.replace(/\]/g, ''); }); // remove closing brackets
260 if (keys[0] === '') { keys.shift(); } // ensure no opening bracket ("[foo][inn]" should be same as "foo[inn]")
264 // Set a value in an object or array, using multiple keys to set in a nested object or array:
266 // deepSet(obj, ['foo'], v) // obj['foo'] = v
267 // deepSet(obj, ['foo', 'inn'], v) // obj['foo']['inn'] = v // Create the inner obj['foo'] object, if needed
268 // deepSet(obj, ['foo', 'inn', '123'], v) // obj['foo']['arr']['123'] = v //
270 // deepSet(obj, ['0'], v) // obj['0'] = v
271 // deepSet(arr, ['0'], v, {useIntKeysAsArrayIndex: true}) // arr[0] = v
272 // deepSet(arr, [''], v) // arr.push(v)
273 // deepSet(obj, ['arr', ''], v) // obj['arr'].push(v)
276 // deepSet(arr, ['', v] // arr => [v]
277 // deepSet(arr, ['', 'foo'], v) // arr => [v, {foo: v}]
278 // deepSet(arr, ['', 'bar'], v) // arr => [v, {foo: v, bar: v}]
279 // deepSet(arr, ['', 'bar'], v) // arr => [v, {foo: v, bar: v}, {bar: v}]
281 deepSet: function (o, keys, value, opts) {
282 var key, nextKey, tail, lastIdx, lastVal, f;
283 if (opts == null) { opts = {}; }
285 if (f.isUndefined(o)) { throw new Error("ArgumentError: param 'o' expected to be an object or array, found undefined"); }
286 if (!keys || keys.length === 0) { throw new Error("ArgumentError: param 'keys' expected to be an array with least one element"); }
290 // Only one key, then it's not a deepSet, just assign the value.
291 if (keys.length === 1) {
293 o.push(value); // '' is used to push values into the array (assume o is an array)
295 o[key] = value; // other keys can be used as object keys or array indexes
298 // With more keys is a deepSet. Apply recursively.
302 // '' is used to push values into the array,
303 // with nextKey, set the value into the same object, in object[nextKey].
304 // Covers the case of ['', 'foo'] and ['', 'var'] to push the object {foo, var}, and the case of nested arrays.
306 lastIdx = o.length - 1; // asume o is array
307 lastVal = o[lastIdx];
308 if (f.isObject(lastVal) && (f.isUndefined(lastVal[nextKey]) || keys.length > 2)) { // if nextKey is not present in the last object element, or there are more keys to deep set
309 key = lastIdx; // then set the new value in the same object element
311 key = lastIdx + 1; // otherwise, point to set the next index in the array
315 // '' is used to push values into the array "array[]"
316 if (nextKey === '') {
317 if (f.isUndefined(o[key]) || !$.isArray(o[key])) {
318 o[key] = []; // define (or override) as array to push values
321 if (opts.useIntKeysAsArrayIndex && f.isValidArrayIndex(nextKey)) { // if 1, 2, 3 ... then use an array, where nextKey is the index
322 if (f.isUndefined(o[key]) || !$.isArray(o[key])) {
323 o[key] = []; // define (or override) as array, to insert values using int keys as array indexes
325 } else { // for anything else, use an object, where nextKey is going to be the attribute name
326 if (f.isUndefined(o[key]) || !f.isObject(o[key])) {
327 o[key] = {}; // define (or override) as object, to set nested properties
332 // Recursively set the inner object
333 tail = keys.slice(1);
334 f.deepSet(o[key], tail, value, opts);