I spent quite a lot of time trying to figure out why video embedded like here: starts playing automatically once the page is loaded in FireFox but cannot do autoplay in Webkit based browsers. This only happened on some random pages. So far I was unable to find the cause. I suspect some unclosed tags or extensive JS created by
Find and update in nested json object
I used this code to find the required portion from the json object from sJhonny’s Question Data Sample Function to find Use like so: This code is to select matching piece from the source. But what I want is to update the source object with new value and retrieve the updated source object. I want something like My code This
Merge two objects and overwrite the values if conflict
I’m trying to merge two objects and overwrite the values in the process. Is it possible with underscore to do the following? (I’m fine with not using underscore I just want it to be simple) Answer You could use Underscore’s extend: The first argument is modified, so if you don’t want to modify obj1 or obj2 just pass in {}.
JavaScript add another row in atable for unique id showing NAN value for id
I have a html table. Inside that my markup is like this: Now under that I have a button called Add a new line: in js file I have the createRow() function like this Now here everything is fine. As per js I can easily add another row. But when I checked the id of input fields I saw that
What is the best way to define dependent variables in an object?
In the Google developers recommendation for optimizing JavaScript code, they mention that the best way to declare/initialize new variables for object is to use the prototype. For instance, instead of: Use: However, in my case I have a dependency between variables, for instance: Using this.toWhom outside of the main constructor body or a method function of the object will yield
chrome.storage.sync.remove array doesn’t work
I am making a small Chrome extension. I would like to use chrome.storage but I can’t get it to delete multiple items (array) from storage. Single item removal works. Nothing seems to break but the last loop that alerts out what is in the storage still shows all the values I am trying to delete. Answer When you pass in
how to call a phone number through javascript without using tag?
How to chain exceptions in javascript (ie add cause like in java)
Is there a standard / best practice way to add a cause of an exception in javascript. In java you might do this: When the resulting exception is printed, it’ll give you a nice trace that includes causes. Is there any good way to do this in javascript or do I have to roll my own? Answer In prod, we
Use dynamic (variable) string as regex pattern in JavaScript
I want to add a (variable) tag to values with regex, the pattern works fine with PHP but I have troubles implementing it into JavaScript. The pattern is (value is the variable): I escaped the backslashes: But this seem not to be right, I logged the pattern and its exactly what it should be. Any ideas? Answer To create the
Distinguishable Event tracking in function using Google Analytic
I’m trying to add an event tracking in my code in HTML/JS web page. So each time that a button is clicked a function executed and for each such execution I want a different event tracker. For example: If it is the first click then increase the first counter. if it is the second click, increase the second counter. No