JavaScript focus()

Syntax

element.focus()

Example

<button onclick="myFunction()">Click me to focus the text input.</button>
<input type="text" id="myText">

<script>
function myFunction() {
  document.getElementById("myText").focus();
}
</script>

Output

Upon clicking the button, the text input will become focused.

Explanation

The focus() method is used to give focus to an element on a web page, typically an input field or button. Once an element is focused, it can receive input from the user, such as typing in text. The focus() method is often used in conjunction with event listeners, so that when a user clicks a button or a link, for example, a text input field becomes focused and the user can begin typing right away.

Use

The focus() method is most commonly used in web development when we want to programmatically set the input focus to a specific element on the page. For example, if a user fills out a form and there is an error in the input, we can use the focus() method to automatically focus on the erroneous input field and draw the user's attention to it. We can also use the focus() method to set the focus on a newly created element, so that the user can take immediate action on that element.

Important Points

• The focus() method is used to give focus to an element on a web page.
• Once an element is focused, it can receive input from the user, such as typing in text.
• The focus() method is often used in conjunction with event listeners to make it easy for the user to navigate the page with input devices like a keyboard or a mouse.
• We can use the focus() method to draw attention to errors or other important input fields on a web form and to allow users to take immediate action on newly created elements.

Summary

The focus() method is a powerful tool for web developers who want to programmatically set the input focus to a specific element on the page. It is used to give focus to an element on a web page so that the user can begin interacting with it, primarily by typing in text or pressing other input devices like a keyboard or a mouse. The focus() method is often used in conjunction with event listeners and is particularly useful when we want to draw attention to errors or other important input fields on a web form.