AnimationEffectTimingProperties.delay

The AnimationEffectTimingProperties dictionary's delay property in the Web Animations API represents the number of milliseconds to delay the start of the animation.

Syntax

var timingProperties = {
  delay: delayInMilliseconds
};

timingProperties.delay = delayInMilliseconds;

Value

A number specifying the delay, in milliseconds, from the start of the animation's play cycle to the beginning of its active interval (the time index at which actual animation begins). Defaults to 0.

Examples

In the Pool of Tears example, each tear is passed a random delay via its timing object:

// Randomizer function
var getRandomMsRange = function(min, max) {
  return Math.random() * (max - min) + min;
}

// Loop through each tear
tears.forEach(function(el) {  

  // Animate each tear
  el.animate(
    tearsFalling, 
    {
      delay: getRandomMsRange(-1000, 1000), // randomized for each tear
      duration: getRandomMsRange(2000, 6000), // randomized for each tear
      iterations: Infinity,
      easing: "cubic-bezier(0.6, 0.04, 0.98, 0.335)"
    });
});

Specifications

Specification	Status	Comment
Web Animations The definition of 'delay' in that specification.	Working Draft	Editor's draft.

Browser compatibility

[1] The Web Animations API is only enabled by default in Firefox Developer Edition and Nightly builds. You can enable it in beta and release builds by setting the preference dom.animations-api.core.enabled to true, and can disable it in any Firefox version by setting this preference to false.

See also

• Web Animations API
• Element.animate(), KeyframeEffectReadOnly(), and KeyframeEffect() all accept an object of timing properties including this one.
• The value of this property corresponds to the one in AnimationEffectTimingReadOnly (which is the timing object for AnimationEffectReadOnly, KeyframeEffectReadOnly, and KeyframeEffect).
• CSS's transition-delay and animation-delay