I am working on ‘how to access elements randomly from an array in javascript’. I found many links regarding this. Like: Get random item from JavaScript array But in this, we can choose only one item from the array. If we want more than one elements then how can we achieve this? How can we get more…
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Global variables in Karma test runner
I have a global variable defined in my main template, which I use to store information bits from the back end, such as the environment context path. I can’t move that variable inside a service. How can I expose that variable to Karma when I run the unit tests? Answer You either declare that global varia…
Viewport argument value “device-width;” for key “width” is invalid, and has been ignored. Note that
I am getting this error in JavaScript: Viewport argument value “device-width;” for key “width” is invalid, and has been ignored. Note that ‘;’ is not a separator in viewport values. The list should be comma-separated. How do I fix this? Answer I had this same error. Oddly, …
Abort new AJAX request before completing the previous one
I have a function that runs an AJAX call on the change of an input. But, there is a chance that the function will be fired again before the previous ajax call has completed. My question is, how would I abort the previous AJAX call before starting a new one? Without using a global variable. (See answer to a si…
Getting a value by name in javascript/razor application
i have an asp application in which i have to use javascript to get the value of an element I need to get the value of each tag age : new { age = “age” + i.ToString() didn’t work and i have to replace it by a script javascript using document.getElementsByName method How can i modify my code t…
Sum JavaScript object propertyA values with the same object propertyB in an array of objects
How would one take a JavaScript array of objects, such as and merge duplicate keys by summing the values? In order to get something like this: I have tried iterating and adding to a new array, but this didn’t work: Answer You should be assigning each object not found to the result with its .key property…
How do you force a Jquery Mobile popup to open using php?
Basically, I am trying to force one of my Jquery mobile popups to open up when isset($_POST[“submit”]) is triggered. Note that having the popup load on page load will not work in this situation, it must be activated when the form is submitted. For example: Answer Can you try this one ?? Credits to…
Adding an image within a circle object in d3 javascript?
My goal is to add an image into an existing circle with d3. The circle will render and is interactive with mouseover method, but only when I use “fill”, “color”, and not something more sophisticated like .append(“image”). The image doesn’t show after I mouse over. Usi…
How do you fetch and parse xml in node.js?
How do you fetch an xml from online with node.js and parse it into a javascript object? I’ve been searching the npm register but only found how to parse the xml-string, not how to fetch it. Answer To fetch an online resource, you can use http.get(). The data can be loaded into memory, or directly sent t…
jQuery: Uncaught Error: Syntax error, unrecognized expression
In my HTML, I have: In the above code, I have one <div> with an id of 2013-10-23, and when getting that id it is throwing this syntax error: Answer try your solution is passing the double quotes as part of the string.