I am a bit stuck and hoping someone can help me, please. Basically I have coded a shopping cart and am currently trying to get the cart to display a message saying “Cart is empty” after all of the cart items have been removed. Everything is working ok apart from the “Cart is empty” mes…
Tag: javascript
Iterate over Store via Map
Via a Map Objects are added to a Svelte Store. Every object has an ID and it should be possible to iterate over those IDs. With $entities.get(“123”).currentPage; The current Page of this Object is returned. How can I iterate over more than one ID such that the current pages of all objects in the s…
Extract URLs from paragraph or block of text using a regular expression
I have a text and a script The expected outcome must be but the below getMatch is giving me incorrectly (skipping &x=y1) How do I modify the function to return a complete URL NOTE: This happens only when the email arguments are passed after it finds @ character, the function behaves weird. Answer Why not …
add event listener with jquery to generated dynamycally href
I have many href generated dynamically with php, and i need event listener click. it´s no very much problem, but when i´m traying to do click in one, always returned me, same data. i have this: my html is: update but i need if i want to do click in href witch id 12 go to id 12, now always
Counting up and down in recursive manner in JS
I am currenty working on functional programming techniques. There are topics about this issue [ especially there is one about java ] but not about JS. I want to create a recursive function that can first, count up until the limit I decide, from the number I indicate and then start counting down when the limit…
d3 getting data binding for selection works but when I iterate the selection, it doesn’t work
I tried to remove the circles having the values of top twenty percents & bottom twenty percents. So I got the data bound to each element by d3.selectAll().data(). However, once I iterate through the elements, it returns an error message saying selection.data() is not a function why it doesn’t work w…
How to initialise a variable in Javascript to INFINITE value?
How can I initialise a variable in javascript to the biggest possible number? I am looking for an equivalent of: Integer.MAX_VALUE –> Java INT_MAX –> C int.MaxValue –> C# Answer With the new added ECMAScript feature MAX_SAFE_INTEGER
React form is sending only one property of state, rather than entire state
I am attempting to send form data from my react client to my nodejs server; however, upon submitting the form, only the last property of the state is sent to my server. I know this is a client side issue, since with Postman, my entire form data is sent to my database. It seems when I add a value to
How to count occurrences of strings in array of arrays?
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…