OptinMonster Dynamic Text Replacement API - getCustomVariable

getcustomvariable.js

<script type="text/javascript">
	var OptinMonsterCustomVariables = function(app) {
		/**
		 * API method for retrieving a custom variable. Must be accessed via the app object.
		 * 
		 * @param string $key  The custom variable key to retrieve.
		 * @return string|bool The value of the custom variable key or false if not found.
		 */
		app.getCustomVariable('foo');
	};
</script>