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How to set the value of a form element using Javascript
The syntax for accessing the form object is as below:
oFormObject = document.forms['myform_id']; |
For accessing individual elements, we use the following code:
oformElement = oFormObject.elements[index]; |
OR
oFormElement = oFormObject.elements["element_name"]; |
In the above code, “index” refers to the position of the element in the “elements” collection array, and “element_name” is the name of the element. Both approaches give us a reference to the desired form element.
Setting the value of a textarea element using JavaScript
In order to set the value of a textarea field element in a form, we can use the following code:
oFormObject.elements["element_name"].value = 'Some Value'; |
If we are accessing the form object through any of the form’s elements itself, we can also use the following code:
this.form.elements["element_name"].value = 'Some Value'; |
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