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To receive the current input value of an active textarea or input field, you can use JavaScript to access the value property of the element.
For example, if you have an input field with an ID of "myInput":
<input type="text" id="myInput">
You can use the following JavaScript code snippet to retrieve the current value of the input field:
var myInput = document.getElementById("myInput");
var currentValue = myInput.value;
console.log(currentValue);
This code will first grab the input element with the ID of "myInput", store it in a variable called "myInput", and then retrieve the current value of the input field using the .value property. The current value will then be logged to the console.
The same approach can be used for a textarea element as well.