How to call a client method from another client method?

So, I finally found this:

/**
 * Method to evaluate JavaScript stored as a Method item on the client side.
 * @param {string} methodName the name of the Method item
 * @param {Object} itemDom the item dom
 * @param {Object} [addArgs] Object with any additional parameters.
 */
Aras.prototype.evalItemMethod = function Aras_evalItemMethod(methodName, itemDom, addArgs)

And indeed I am able to call a method when giving it the good methodName. Then, from the other methods, I can access the addArgs array with arguments[1].

So, I finally found this:

/**
 * Method to evaluate JavaScript stored as a Method item on the client side.
 * @param {string} methodName the name of the Method item
 * @param {Object} itemDom the item dom
 * @param {Object} [addArgs] Object with any additional parameters.
 */
Aras.prototype.evalItemMethod = function Aras_evalItemMethod(methodName, itemDom, addArgs)

And indeed I am able to call a method when giving it the good methodName. Then, from the other methods, I can access the addArgs array with arguments[1].