How would i find collision between circles?

Question

In my newest code I made two balls bounce around the canvas while displaying their x and y value on the screen along with their x and y velocity values. I cannot figure out how to see if they collided or not. I established the x and y variables as ballX, ballY, squareX, and square Y. I tried
if(ballX==squareX && ballY == squareY) {
alert("collision detected");
}
but it wont work

Answer 1

Good question 🔵🔴⚪ 💥💥💥

Answer 2

Why are you checking only equality?