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promise object

Information noteSTABLE.

This API is reliable and breaking changes are unlikely.

qlik.promise(executor(resolve, reject))

Promise utility that can be used for asynchronous operations. Very useful for the paint method to indicate when the rendering is completed.

Full documentation can be found on https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise.

Version history

Version history
Version state Details
Introduced 3.0

Parameters

executor

Type: Function

The executing function with two parameters:

  • resolve
  • reject

Example

var Promise = qlik.Promise;
qlik.registerExtension("dumpchart",
{
  paint:function($element,layout) {
    return new Promise(function(resolve, reject) {
      setTimeout(function() {
        $element.html(JSON.stringify(layout));
        resolve(); // Extension painted successfully
      }, 1000);
    });
  }
});