我的库phery中的代码有一个序列化例程，可以处理非常复杂的表单（如演示中所示https://github.com/pocesar/phery/blob/master/demo.php#L1664），而且不是一刀切。它实际上检查每个字段的类型。例如，单选框与范围不同，与keygen不同，与select multiple不同。我的功能涵盖了这一切，你可以看到它在https://github.com/pocesar/phery/blob/master/phery.js#L1851.

serializeForm:function (opt) {
    opt = $.extend({}, opt);

    if (typeof opt['disabled'] === 'undefined' || opt['disabled'] === null) {
        opt['disabled'] = false;
    }
    if (typeof opt['all'] === 'undefined' || opt['all'] === null) {
        opt['all'] = false;
    }
    if (typeof opt['empty'] === 'undefined' || opt['empty'] === null) {
        opt['empty'] = true;
    }

    var
        $form = $(this),
        result = {},
        formValues =
            $form
                .find('input,textarea,select,keygen')
                .filter(function () {
                    var ret = true;
                    if (!opt['disabled']) {
                        ret = !this.disabled;
                    }
                    return ret && $.trim(this.name);
                })
                .map(function () {
                    var
                        $this = $(this),
                        radios,
                        options,
                        value = null;

                    if ($this.is('[type="radio"]') || $this.is('[type="checkbox"]')) {
                        if ($this.is('[type="radio"]')) {
                            radios = $form.find('[type="radio"][name="' + this.name + '"]');
                            if (radios.filter('[checked]').size()) {
                                value = radios.filter('[checked]').val();
                            }
                        } else if ($this.prop('checked')) {
                            value = $this.is('[value]') ? $this.val() : 1;
                        }
                    } else if ($this.is('select')) {
                        options = $this.find('option').filter(':selected');
                        if ($this.prop('multiple')) {
                            value = options.map(function () {
                                return this.value || this.innerHTML;
                            }).get();
                        } else {
                            value = options.val();
                        }
                    } else {
                        value = $this.val();
                    }

                    return {
                        'name':this.name || null,
                        'value':value
                    };
                }).get();

    if (formValues) {
        var
            i,
            value,
            name,
            $matches,
            len,
            offset,
            j,
            fields;

        for (i = 0; i < formValues.length; i++) {
            name = formValues[i].name;
            value = formValues[i].value;

            if (!opt['all']) {
                if (value === null) {
                    continue;
                }
            } else {
                if (value === null) {
                    value = '';
                }
            }

            if (value === '' && !opt['empty']) {
                continue;
            }

            if (!name) {
                continue;
            }

            $matches = name.split(/\[/);

            len = $matches.length;

            for (j = 1; j < len; j++) {
                $matches[j] = $matches[j].replace(/\]/g, '');
            }

            fields = [];

            for (j = 0; j < len; j++) {
                if ($matches[j] || j < len - 1) {
                    fields.push($matches[j].replace("'", ''));
                }
            }

            if ($matches[len - 1] === '') {
                offset = assign_object(result, fields, [], true, false, false);

                if (value.constructor === Array) {
                    offset[0][offset[1]].concat(value);
                } else {
                    offset[0][offset[1]].push(value);
                }
            } else {
                assign_object(result, fields, value);
            }
        }
    }

    return result;
}

它是我的库phery的一部分，但可以移植到您自己的项目中。它在应该有数组的地方创建数组，从select、normalize复选框等选项中获取正确的选择选项。如果要将其转换为JSON（真正的JSON字符串），只需执行JSON.stringify（$（'form'）.serializeForm（））；

serialize函数将JSON对象作为参数并返回serialize String。

function serialize(object) {
            var _SPECIAL_CHARS = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, _CHARS = {
                '\b' : '\\b',
                '\t' : '\\t',
                '\n' : '\\n',
                '\f' : '\\f',
                '\r' : '\\r',
                '"' : '\\"',
                '\\' : '\\\\'
            }, EMPTY = '', OPEN_O = '{', CLOSE_O = '}', OPEN_A = '[', CLOSE_A = ']', COMMA = ',', COMMA_CR = ",\n", CR = "\n", COLON = ':', space = "", COLON_SP = ': ', stack = [], QUOTE = '"';
            function _char(c) {
                if (!_CHARS[c]) {
                    _CHARS[c] = '\\u' + ('0000' + (+(c.charCodeAt(0))).toString(16))
                        .slice(-4);
                }
                return _CHARS[c];
            }
            function _string(s) {
                return QUOTE + s.replace(_SPECIAL_CHARS, _char) + QUOTE;
                // return str.replace('\"','').replace('\"','');
            }

            function serialize(h, key) {
                var value = h[key], a = [], colon = ":", arr, i, keys, t, k, v;
                arr = value instanceof Array;
                stack.push(value);
                keys = value;
                i = 0;
                t = typeof value;
                switch (t) {
                    case "object" :
                        if(value==null){
                            return null;
                        }
                        break;
                    case "string" :
                        return _string(value);
                    case "number" :
                        return isFinite(value) ? value + EMPTY : NULL;
                    case "boolean" :
                        return value + EMPTY;
                    case "null" :
                        return null;
                    default :
                        return undefined;
                }
                arr = value.length === undefined ? false : true;

                if (arr) { // Array
                    for (i = value.length - 1; i >= 0; --i) {
                        a[i] = serialize(value, i) || NULL;
                    }
                }
                else { // Object
                    i = 0;
                    for (k in keys) {
                        if (keys.hasOwnProperty(k)) {
                            v = serialize(value, k);
                            if (v) {
                                a[i++] = _string(k) + colon + v;
                            }
                        }
                    }
                }

                stack.pop();
                if (space && a.length) {

                    return arr
                        ? "[" + _indent(a.join(COMMA_CR), space) + "\n]"
                        : "{\n" + _indent(a.join(COMMA_CR), space) + "\n}";
                }
                else {
                    return arr ? "[" + a.join(COMMA) + "]" : "{" + a.join(COMMA)
                        + "}";
                }
            }
            return serialize({
                "" : object
            }, "");
        }

const formData = new FormData(form);

let formDataJSON = {};

for (const [key, value] of formData.entries()) {

    formDataJSON[key] = value;
}

serializeArray已经做到了这一点。您只需将数据转换为所需格式：

function objectifyForm(formArray) {
    //serialize data function
    var returnArray = {};
    for (var i = 0; i < formArray.length; i++){
        returnArray[formArray[i]['name']] = formArray[i]['value'];
    }
    return returnArray;
}

注意与实际输入同名的隐藏字段，因为它们会被覆盖。

对于语义ui/formantic ui，有一个内置的行为get值：

const fields = $("#myForm.ui.form").form('get values');
const jsonStr = JSON.stringify(fields);

看见https://fomantic-ui.com/behaviors/form.html#/settings

get-values（标识符）返回与标识符数组匹配的元素值的对象。如果未通过IDS，将返回所有字段

将任何东西变成对象（未经单元测试）

<script type="text/javascript">
string = {};

string.repeat = function(string, count)
{
    return new Array(count+1).join(string);
}

string.count = function(string)
{
    var count = 0;

    for (var i=1; i<arguments.length; i++)
    {
        var results = string.match(new RegExp(arguments[i], 'g'));
        count += results ? results.length : 0;
    }

    return count;
}

array = {};

array.merge = function(arr1, arr2)
{
    for (var i in arr2)
    {
        if (arr1[i] && typeof arr1[i] == 'object' && typeof arr2[i] == 'object')
            arr1[i] = array.merge(arr1[i], arr2[i]);
        else
            arr1[i] = arr2[i]
    }

    return arr1;
}

array.print = function(obj)
{
    var arr = [];
    $.each(obj, function(key, val) {
        var next = key + ": ";
        next += $.isPlainObject(val) ? array.print(val) : val;
        arr.push( next );
      });

    return "{ " +  arr.join(", ") + " }";
}

node = {};

node.objectify = function(node, params)
{
    if (!params)
        params = {};

    if (!params.selector)
        params.selector = "*";

    if (!params.key)
        params.key = "name";

    if (!params.value)
        params.value = "value";

    var o = {};
    var indexes = {};

    $(node).find(params.selector+"["+params.key+"]").each(function()
    {
        var name = $(this).attr(params.key),
            value = $(this).attr(params.value);

        var obj = $.parseJSON("{"+name.replace(/([^\[]*)/, function()
        {
            return '"'+arguments[1]+'"';
        }).replace(/\[(.*?)\]/gi, function()
        {
            if (arguments[1].length == 0)
            {
                var index = arguments[3].substring(0, arguments[2]);
                indexes[index] = indexes[index] !== undefined ? indexes[index]+1 : 0;

                return ':{"'+indexes[index]+'"';
            }
            else
                return ':{"'+escape(arguments[1])+'"';
        })+':"'+value.replace(/[\\"]/gi, function()
        {
            return "\\"+arguments[0]; 
        })+'"'+string.repeat('}', string.count(name, ']'))+"}");

        o = array.merge(o, obj);
    });

    return o;
}
</script>

测试输出：

$(document).ready(function()
{
    console.log(array.print(node.objectify($("form"), {})));
    console.log(array.print(node.objectify($("form"), {selector: "select"})));
});

on

<form>
    <input name='input[a]' type='text' value='text'/>
    <select name='input[b]'>
        <option>select</option>
    </select>

    <input name='otherinput[c][a]' value='a'/>
    <input name='otherinput[c][]' value='b'/>
    <input name='otherinput[d][b]' value='c'/>
    <input name='otherinput[c][]' value='d'/>

    <input type='hidden' name='anotherinput' value='hidden'/>
    <input type='hidden' name='anotherinput' value='1'/>

    <input type='submit' value='submit'/>
</form>

将产生：

{ input: { a: text, b: select }, otherinput: { c: { a: a, 0: b, 1: d }, d: { b: c } }, anotherinput: 1 }
{ input: { b: select } }