Delay to next function in method chain

This isn’t easy to do. jQuery uses a specific queue system.

Suppose you want to do it without jQuery, you would have to implement a queue yourself.

For example this very simplistic implementation :

var foo = function() {
    var queue = [];
    var timer;
    this.delay = function(per) {
      timer = setTimeout(function(){
        timer = 0;
        var f;
        while (f = queue.shift()) f();
      }, per);
      return this;
    };
    this.addFunction = function(f) {
      if (timer) queue.push(f);
      else f();
      return this;
    };
    this.start = function() {
       this.addFunction(function(){alert('start')});
       return this;
    };
};

Demonstration

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If you want to chain another function not defined in foo, you may do

var bar = new foo().delay(3000).start()
    .addFunction(function(){alert("another chained one")});

Demonstration