sense-extension-recipes/PreviewImg/src/lib/js/extensionUtils.js

Recipes on working with Qlik Sense Visualization Extensions.

define( [
	'jquery',
	'underscore'
], function ( $ /*, _*/ ) {
	'use strict';

	// Taken from http://www.briangrinstead.com/blog/console-log-helper-function
	// Full version of `log` that:
	//  * Prevents errors on console methods when no console present.
	//  * Exposes a global 'log' function that preserves line numbering and formatting.
	(function () {
		var method;
		var noop = function () { };
		var methods = [
			'assert', 'clear', 'count', 'debug', 'dir', 'dirxml', 'error',
			'exception', 'group', 'groupCollapsed', 'groupEnd', 'info', 'log',
			'markTimeline', 'profile', 'profileEnd', 'table', 'time', 'timeEnd',
			'timeStamp', 'trace', 'warn'
		];
		var length = methods.length;
		var console = (window.console = window.console || {});

		while (length--) {
			method = methods[length];

			// Only stub undefined methods.
			if (!console[method]) {
				console[method] = noop;
			}
		}


		if (Function.prototype.bind) {
			window.log = Function.prototype.bind.call(console.log, console);
		}
		else {
			window.log = function() {
				Function.prototype.apply.call(console.log, console, arguments);
			};
		}
	})();

	return {

		/**
		 * Add a style to the document's header.
		 * @param cssContent (String)
		 */
		addStyleToHeader: function ( cssContent ) {
			$( "<style>" ).html( cssContent ).appendTo( "head" );
		}



	};

} );