setReadOnly
时间: 2023-11-06 08:12:28 浏览: 36
setReadOnly is a method that is used to set the read-only state of an element in the document object model (DOM). When an element is set to read-only, it prevents the user from modifying its contents. This method is commonly used for input fields, textareas, and other types of form elements to prevent users from changing their values.
Here is an example of how to use setReadOnly method in JavaScript:
```
// Get the input element
const input = document.getElementById("myInput");
// Set the input element to read-only
input.setReadOnly(true);
```
In this example, we first get the input element with the ID "myInput" using the getElementById method. We then call the setReadOnly method on the input element and pass in the value true to set it to read-only. Once set to read-only, the user will not be able to modify the input value.