I have multiple action buttons, on which i want to show different select Inputs and I want to know last clicked button id, how can I do that? When I use  which(lapply(c(1:10), function(i) { input[[paste0("ActionButton", i)]]}) == TRUE)   It s...
I observed the dataLayer array and I don't see any changes to push. No custom methods at all, actually. How is GTM observing the changes to the array? As far as I know, changes to an Array don't throw any events, do they?    Edit:  I did some...
I'm trying to write an object relationship that follows an observer pattern where the observer cares about a specific set of events that occur on the subject.    I'm not sure if this is 100% standard, but the way I've constructed it, thes...
I can not find how to implement this (I apologize for the freestyle record):  //assign the event handler for the object "myObj"      myObj.onMyEvent = //do something  //if something happened somewhere, then run the event MyEvent.fire();   The...
I am trying to understand the Observable/Observer design pattern.  This is the code I have so far (code from Javascript Patterns book):              var publisher = {             subscribers: {                 any: [] // event type: subscribers...
I've an observable object defined as follows:  Ext.define ('MyObject', {   mixins: {     observable: 'Ext.util.Observable'   } ,   constructor: function (cfg) {     this.initConfig (cfg);     this.mixins.observable.constructor.cal...
I'm trying to understand best practices for unobtrusive Javascript. Among the ideas of unobtrusive Javascript is that Javascript should not be directly included in the html code of the page, such as onchange=runScript(). Instead, an observer shou...
I just tried out this Observer Pattern Code from https://scotch.io/bar-talk/4-javascript-design-patterns-you-should-know#observer-design-pattern but it doesn't work. It tells me that this.observers is undefined, but i really don't understand...
I think we just take it for granted that whenever we change the DOM element's property or its CSSStyleDeclation object's property, the page will be redrawn:  http://jsfiddle.net/peqtL/  document.getElementById("foo").innerHTML = "...
I'm trying to create my own 'modal' window since none of these currently existing for PrototypeJS fits my needs.  The problem is observing document.documentElement for change of height and width of viewport ( or document.body, depending o...

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