How to get form data with multi select in checkboxs - javascript

Question

I have a form that I want to get all his values, and convert them to json object.

the problem is that I not get the multiselect fields, just one field. this is my code what I am missing?

let reportDropDowns = $('#getReport').serialize();
        reportDropDowns = decodeURI(reportDropDowns);
        let reportDropDownsJson = {};

   
    reportDropDownsJson =  JSON.parse('{"' + reportDropDowns.replace(/&/g, '","').replace(/=/g,'":"') + '"}', function(key, value) { return key===""?value:decodeURIComponent(value) });

this is my html

^ agreed with the above, the serialize method will only return successful controls which are defined in the official documentation, meaning if your HTML is not proper peer W3C you might see problems with what you are looking to achieve. See: api.jquery.com/serialize — AGE
– AGE, Commented Feb 15, 2022 at 15:49

ruleboy21 · Accepted Answer · 2022-02-15 16:33:29Z

1

Instead of serializing the data directly via .serialize(), you should instead use .serializeArray() to get the data as an array. You can then manipulate the array into an object/JSON. Try this

let reportDropDownsJson = {};
$('#getReport').serializeArray().forEach(({name, value}) => {
    if( reportDropDownsJson.hasOwnProperty(name) ){
        if( !Array.isArray(reportDropDownsJson[name]) ){
            reportDropDownsJson[name] = [reportDropDownsJson[name]];
        }
        
        reportDropDownsJson[name].push(value);
    }else{
        reportDropDownsJson[name] = value;
    }
});

answered Feb 15, 2022 at 16:33

ruleboy21

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2 Comments

Bastian Over a year ago

Hey it worked however I can not manipulate it to json

ruleboy21 Over a year ago

You can use JSON.stringify(reportDropDownsJson) to convert it to JSON string.

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