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Waits for an element to start existing.
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waitforit.js: Wait for an Element

Waits for an element to start existing.

Try the demo.

How to include the script

This include can be added to the header or placed inline before the script is invoked.

<script src="./js/waitforit.js"></script>

How to start the script

new WaitForIt({
	'target': document,
	'selector': '#waitForThis',
	'handler': function(elements) {
		// execute this script only when the specified element gets added to the document
		alert('the selected elements exist now', elements);
	'repeat': false

'target' : {DOM Element} - The target to watch for changes.

'selector' : {CSS Selector} - What to watch the target for.

'elements' : {DOM Elements} - The selected element(s).

'repeat' : {Boolean) - Continue watching the target for further changes.

How to build the script

This project uses node.js from

This project uses gulp.js from

The following commands are available for development:

  • npm install - Installs the prerequisites.
  • gulp import - Re-imports libraries from supporting projects to ./src/libs/ if available under the same folder tree.
  • gulp dev - Builds the project for development purposes.
  • gulp dist - Builds the project for deployment purposes.
  • gulp watch - Continuously recompiles updated files during development sessions.
  • gulp serve - Serves the project on a temporary www server at http://localhost:8500/.
  • gulp php - Serves the project on a temporary php server at http://localhost:8500/.


This work is licensed under a Creative Commons Attribution 3.0 Unported License. The latest version of this and other scripts by the same author can be found at

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