How to Determine If the Chrome Console is Open?

How to Determine Chrome Console Visibility

Detecting whether the Chrome console is open can be a challenge due to the absence of a dedicated flag. However, there are alternative methods that can provide a workaround.

One approach involves utilizing the debugger:

if (typeof Debugger !== "undefined") {
  console.log("Chrome console is open");
}

While this method has been deprecated, it can still work in some situations.

Another technique leverages requestAnimationFrame:

let isConsoleOpen = false;

requestAnimationFrame(() => {
  isConsoleOpen = true;
});

setInterval(() => {
  if (isConsoleOpen) {
    console.log("Chrome console is open");
  }
}, 1000);

This approach relies on the console closing the requestAnimationFrame loop, thus allowing the detection of both open and closed events.

Finally, a third option utilizes the function toString method:

let devtools = () => {};
devtools.toString = () => {
  if (!this.opened) {
    alert("Opened");
  }
  this.opened = true;
};

console.log("%c", devtools);

if (devtools.opened) {
  console.log("Chrome console is open");
}

This method detects console visibility based on the opening of the console log.

It's important to note that none of these methods is perfect, as there are certain scenarios where they may not work as expected. However, they provide viable options for detecting Chrome console visibility.

The above is the detailed content of How to Determine If the Chrome Console is Open?. For more information, please follow other related articles on the PHP Chinese website!