Mapping multiple form inputs of the same name into a JavaScript object

» javascript » Mapping multiple form inputs of the same name into a JavaScript object

By : user3045252

Date : December 01 2020, 04:52 PM

will be helpful for those in need The crux of the problem is that you can't have multiple form fields with the same name. If you do, that's called a "naming collision" which will bust native functionality of an HTML form. But you can use a sort of template-like logic and generate variant names that make sense base on the number of people that are added to the HTML form. My example may not be what you're looking for exactly, but it's what I came up with:

code :

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Spring form handling, mapping an entity to form inputs

By : Roy Terje Best Hokho

Date : March 29 2020, 07:55 AM

I wish this help you Note the @SessionAttributes annotation on the class:
When the original GET request comes, the newly created Visit is stored in a session. When the subsequent POST comes, object stored in the session is updated with the input values from the form. When Visit is finally persisted, status.setComplete() removes the session attribute.

How do I combine multiple form inputs into a single object with SimpleFormController in Spring?

By : ghcvieira

Date : March 29 2020, 07:55 AM

wish help you to fix your issue I have an object called Person that has the following properties: , You need to write:

code :

<form:input path="name.firstName" />
...

protected Object formBackingObject(HttpServletRequest request) {
   Person person = new Person();
   person.Name = new Name();
   return person;
}

JavaScript - Iterate over form inputs and collect values as key value pairs in object

By : gra

Date : March 29 2020, 07:55 AM

may help you . Add a unique id to each input field (to give it a key for your object).

code :

<form>
  <input id="firstName" type="text">
  <input id="lastName" type="text">
  <input id="email" type="email">
  <input id="number" type="text">
</form>

var inputs = document.querySelectorAll('input');    
var myObject = {};

for (var i = 0; i < inputs.length; i++) {
  myObject[inputs[i].id] = inputs[i].value;
}

console.log(myObject) // {firstName: "", lastName: "", email: "", number: ""}

function getFormValues(formId) {
    var inputs = document.querySelectorAll('#' + formId + ' input');    
    var formValues = {};

    for (var i = 0; i < inputs.length; i++) {
      formValues[inputs[i].id] = inputs[i].value;
    }

    return formValues;
}

<form id="registerForm">
  <input id="firstName" type="text">
  <input id="lastName" type="text">
  <input id="email" type="email">
  <input id="number" type="text">
</form>

getFormValues('registerForm'); // {firstName: "", lastName: "", email: "", number: ""}

How to store inputs form grid into vector/object (javascript, vue)

By : Arihant Awasthi

Date : March 29 2020, 07:55 AM

hop of those help? You can add a Watcher in the number of rows and columns and add them as needed:

code :

new Vue({
  el: '#app',
  data() {
    return {
      grid: [
        {"0": 111, "1": 555},
        {"0": 222, "1": 666}
      ],
      nRows: 2,
      nColumns: 2
    }
  },
  methods: {
    updateGrid() {
      for (let c = 0; c < this.nColumns; c++) {
        if (!this.grid[c]) {
          this.grid[c] = {};
        }
        for (let r = 0; r < this.nRows; r++) {
          if (!this.grid[c][r]) {
            this.grid[c][r] = null;
          }
        }
      }
    }
  },
  watch: {
    nRows() {
      this.updateGrid();
    },
    nColumns() {
      this.updateGrid();
    },
  }
})

input { width: 50px }

<script src="https://unpkg.com/vue"></script>

<div id="app">
  <h2>Grid 2</h2>
  <p>Adjust grid size:&nbsp
    <label>Columns <input type="number" v-model.number="nColumns" /></label>
    <label>Rows <input type="number" v-model.number="nRows" /></label>
  </p>
  <table>
    <tr v-for="(row, r) in nRows" :key="r">
      <td v-for="(column, c) in nColumns" :key="c" v-if="grid[c] !== undefined && grid[c][r] !== undefined">
        {{r}}{{c}}: <input type="number" v-model.number="grid[c][r]" /> &nbsp
      </td>
    </tr>
  </table>
</div>

javascript object/array values into form inputs on click

By : user1704902

Date : March 29 2020, 07:55 AM

I hope this helps you . The problem is that for each search result which is returned, you add another "input" event handler function to the "productInput" element. So if there are 5 results, you create 5 more event handlers. Then when something is input into that box, all 5 handlers (plus the original one, so 6) will execute in sequence. Since each time it overwrites the same textboxes, hence you only ever see the the last value. I'm pretty sure that's not even close to what you wanted.
You're adding options to the "returnedProducts" select list, and when the user selects an option you want some data to go into a form, is that right? If so, it would make more sense to handle the "change" event of the select list (and handle it once outside of your "success" function!!), and set data attributes on the option for the extra values. When the change event runs, retrieve the data attributes from the currently selected option and use those to populate your form.

code :

for(let i = 0; i < searchResult.length; i++) {
    //this puts matches into the select list option
    $("#returnedProducts").append("<option value='" + searchResult[i]._source.category + "' data-grpName='" + searchResult[i]._source.frm.grp.grp_name + "' data-grpNum='" + searchResult[i]._source.frm.grp.grp_code + "'>" + searchResult[i]._source.category + "</option>");
}

$("#returnedProducts").change(function() {
  var selectedOption = $(this).find("option:selected");
  $("#grpName").val(selectedOption.data("grpName"));
  $("#grpNum").val(selectedOption.data("grpNum"));
});