javascript - How can I constantly check collision between page elements?

Question

I have implemented the algorithm, but what I am facing is how can I check constantly whether the element has hit other elements.

Example:

div id='water' when hits div id='orange' should alert , should I use jQuery setInterval :s or is there any other way to keep the function live ?

Answer 1

您应该使用setInterval()。这是一个小样本。

$(document).ready(function() {
    // Checks collisions every second
    setInterval(function(){checkCollisions()},1000);
});


function checkCollisions() {
    // Do your checks
}