Javascript on window resize end

Question

I am calling a function when the window is resized like this:

window.addEventListener(\"resize\", calculateDimensions());

But I need a way

Answer 1

Use window.addEventListener("resize", calculateDimensions);

calculateDimensions() means that you execute the function and then use that result as a callback function.

Answer 2

I like Jonas Wilms nifty little debounce function, however I think it would be nicer to pass the debounce time as a param.

// Debounce
function debounce(func, time){
    var time = time || 100; // 100 by default if no param
    var timer;
    return function(event){
        if(timer) clearTimeout(timer);
        timer = setTimeout(func, time, event);
    };
}

// Function with stuff to execute
function resizeContent() {
    // Do loads of stuff once window has resized
    console.log('resized');
}

// Eventlistener
window.addEventListener("resize", debounce( resizeContent, 150 ));

Answer 3

You could set a Timeout and reset it when resize is fired again. So the last timeout isnt canceled and the function is run:

function debounce(func){
  var timer;
  return function(event){
    if(timer) clearTimeout(timer);
    timer = setTimeout(func,100,event);
  };
}

Usable like this:

window.addEventListener("resize",debounce(function(e){
  alert("end of resizing");
}));