I have the following array of arrays (pasted below) and would like to loop through it to count how many times each color appears. What’s the simplest way to go about doing this? Answer Use flat() and reduce():
innerHTML containing bookmarks cannot be linked to from another page
I use JavaScript AJAX to include a file cards.html into a parent html page index.html. The included cards.html file is a list of cards and each card has a bookmark in it in the form <li id=”byx-123_shapes”>. When I hyperlink to the bookmark from another page, instead of the browser positioni…
Change Color of Icon When Hovering Over Adjacent Text With jQuery
I have seen this article but I want to change the color of the icon with JavaScript instead. Trying to write a function that changes the color of the icon and the text when the icon or the text is hovered over. I’m using the code provided in this answer to check to see if the element is hovered with
Javascript Array of Functions get auto executed
I need to make a sequence of Promises that are executed in a queue. They are dynamic so I need to put them in an array (I have found an article that explains how to). The problem is that my array of functions autoexecuted it self (version with a normal funciton): I don’t know why, an array of functions …
javascript sum up selected element data value and deduct when unselect
I have 3 div which are item1, item2, and item3. item1 with <data-price=”10″>， item1 with <data-price=”20″>， item1 with <data-price=”30″> What I’m trying to do is when selected the item, it will get the item’s <data-price> and sum up, whil…
How to link to another page with a back button within the frame
I need to have a link to another website with a back button on that website (which I don’t own) back to my site. I initially thought of doing this by using and iFrame and then using z-index to put a div onto of this. However I kept getting the message: Please note that the user won’t have access t…
how to add property on nested object array and edit the original array?
i have been trying doing so but in the last console log I got undefined , what is wrong?? Answer You are forget return the map result Still undefined check the dishes array declared properly before the map
How to push down a after duplicating another ?
I don’t know if my title can be understood clearly but what I’m aiming for is after I click a button, the div on top of the button will be duplicated directly below the original so the button will have to go down. I read about using position: absolute and position: relative but it seems that it do…
Catch block wrapping a function that throws inside a setTimeout not executed
Experienced something strange recently, none of the catch blocks get executed: and And according to the mdn docs Execution of the current function will stop (the statements after throw won’t be executed), and control will be passed to the first catch block in the call stack. If no catch block exists amo…
How to represent any numbers in chart via canvas?
I want to create line chart via canvas, for data representation on vanilla JavaScript. For example canvas width 600px, height 400px. I have min and max possible numbers on Y axis and numbers between them. X axis represents date. This chart has maximum 1000 and minimum 0 (and numbers between them). I can use t…