[google-chrome] What does ==$0 (double equals dollar zero) mean in Chrome Developer Tools?

In Google Chrome's developer tools, when I select an element, I see ==$0 next to the selected element. What does that mean?

The other answers here clearly explained what does it mean.I like to explain its use.

You can select an element in the elements tab and switch to console tab in chrome. Just type $0 or $1 or whatever number and press enter and the element will be displayed in the console for your use.

This is Chrome's hint to tell you that if you type $0 on the console, it will be equivalent to that specific element.

Internally, Chrome maintains a stack, where $0 is the selected element, $1 is the element that was last selected, $2 would be the one that was selected before $1 and so on.

Here are some of its applications:

• Accessing DOM elements from console: $0
• Accessing their properties from console: $0.parentElement
• Updating their properties from console: $1.classList.add(...)
• Updating CSS elements from console: $0.styles.backgroundColor="aqua"
• Triggering CSS events from console: $0.click()
• And doing a lot more complex stuffs, like: $0.appendChild(document.createElement("div"))

Watch all of this in action:

Backing statement:

Yes, I agree there are better ways to perform these actions, but this feature can come out handy in certain intricate scenarios, like when a DOM element needs to be clicked but it is not possible to do so from the UI because it is covered by other elements or, for some reason, is not visible on UI at that moment.

$0 returns the most recently selected element or JavaScript object, $1 returns the second most recently selected one, and so on.

Refer : Command Line API Reference

I will say It 's just shorthand syntax for get reference of html element during debugging time , normaly these kind of task will perform by these method

document.getElementById , document.getElementsByClassName , document.querySelector

so clicking on an html element and getting a reference variable ($0) in console is a huge time saving during the day