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Tag: javascript

ReferenceError: $ is not defined

I have this error message ReferenceError: $ is not defined This is my header. Following is my JavaScript code Following is the HTML I want to show datepicker on the input tag. I am using Bootstrap V3.1. I am using this datepicker. Answer Add jQuery library before your script which uses $ or jQuery so that $ c…

Javascript: Convert Array to Object

Which is the easiest way to convert this: to this: in order to pass it to AJAX data? I’m using VisualSearch and it returns an array of Facet model instances which i need to convert into an Object. Answer think about the array.reduce function everytime you need to perform these kind of transformations. h…

My displayError() function is not working at all

I made a function that should display an error or remove an error. Unfortunately, when I use the function in any way, for example like displayError(true, “test”);, it’s not working. When I check my html code to see if anything changes, nothing is changed. Anybody who can identify the problem…

Image flickering on mouseover and mouseout

Hello I have a menu that consists of div tags. The user selects an image for each menu item and one additional image to be applied when the mouse is over the menu (hover state). The problem is that is on mouseenter and on mouseleave the image flickers and the user experience is not ideal. Keep in mind that th…

Hello world with Tornado and Javascript client

I would like to establish a simple two-way communication between a Tornado server and a Javascript client. When I run the server, followed by opening the page, the server prints out “get” as expected. However, while the server sends something back, the onmessage event never seems to be triggered i…