Make all the functions available in your specs by adding it to your global:

var plus = require('protractor_plus');
module.exports= = {
	onPrepare: function() {
		plus(global);
		/*All of the functions can be called directly in the specs*/
	}
}

Optional: If you don't want to add it to the global object, you can simply require and call:

var plus = require('protractor_plus')();
it('sleep', function() {
	plus.sleep();
});

Available Functions

/*Sleep for time or default for 3000ms*/
sleep(time);

/*If element contains text, promise that resolve otherwise promise that rejects.*/
elementContainsText(element, text)

/*Returns a promise that resolve the element in elements, 'elements.all'. If strict is true, then will check text exactly, otherwise uses a contains.*/
elementFromText(elements, text, strict)

/*DOES NOT RETURN a promise, returns an element based on the attribute provided*/
elementFromAttribute(attribute, value);

/*Returns a promise that resolves if the element has attribute and value, rejects otherwise No value means it will only check for existence, value match otherwise*/
elementHasAttribute(element, attribute, value)

/*Stall protractor un til element is visible. Works for element.all as well. If no timeout, default to 3000ms*/
waitFor(element, timeout)

/*Like above but invisible*/.
waitInvisible(element, timeout)

/*Click an element that is not currently viewable by browser*/
clickOutOfView(element)

/*Make the mouse hover over an element*/
mouseOver(element);

/*Scroll the browser's view over the element*/
scrollIntoView(element);