Exploring the Differences between HTML Values in HTML and jQuery

Can someone assist me with comparing HTML values to check for equality?

I am looking to compare the values of two select elements in HTML and needing guidance on how to accomplish this.

Specifically, I want to determine if the selected values from both select elements are equal.

if ($("form select[name='cars']").val() == $("form select[name='colour']").val()) {
       #perform tasks
        }

<form method="post">

<select name="cars">
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="mercedes">Mercedes</option>
  <option value="audi">Audi</option>
</select>

<select name="colour">
  <option value="black">black</option>
  <option value="yellow">yellow</option>
  <option value="red">red</option>
  <option value="white">white</option>
</select>

</form>

Answer №1

Working with JavaScript:

let selectedCar = document.getElementsByName("cars")[0];

let selectedColor = document.getElementsByName("colour")[0];

if(selectedCar.options[selectedCar.selectedIndex].value == selectedColor.options[selectedColor.selectedIndex].value)

{
    // Perform an action
}

Answer №2

To perform a comparison, ensure that the value prop on the select tags are identical in both select blocks. Here's an example code snippet for reference:

$("button").on("click", function() {
  if ($("select[name='cars']").val() == $("select[name='colour']").val()) {
    alert("The values are equal");
  } else {
    alert("The values are not equal");
  }
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<select name="cars">
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="mercedes">Mercedes</option>
  <option value="audi">Audi</option>
</select>

<select name="colour">
  <option value="volvo">black</option>
  <option value="saab">yellow</option>
  <option value="mercedes">red</option>
  <option value="audi">white</option>
</select>
<button>Check</button>

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