I have a map like this, which represents a graph: And I have this class, which creates a rooted tree: My goal is: given a root, I want to convert that graph to a rooted tree. For the example above, using 1 as root, I want the following return: Here’s my code: I’m receiving an empty array from the …
Category: Questions
Highcharts.js column chart labels and data not displaying properly after 60 columns
I recently integrated a highcharts column chart, it was working well until my data reached about 60 columns, when I reached 60 columns most of the labels and bars disappear. When I remove the scroll ability from the chart all labels and data show again. Please see https://jsfiddle.net/essensebryant/bnh2z6k7/1…
change color when the number goes down
I am trying to change the class name to an element when its value goes down My view in the blade is a foreach I want to add a class to the td with id “changecolor” My script is: The color is applied only to the first element of the foreach and ignoring all the others. I want to apply
Limiting containers to three fixed sizes
I’m looking at the react-grid-layout which is based on Material Design’s 12 column grid. Is there a way to provide pre-defined sizes for containers to stick to the following 3 sizes: 1 full width (12 cols), half grid (6 cols) or 1/3 grid (4 cols)? Sandbox Answer My guess is that when you say conta…
IntersectionOberserver with newly appearing Elements
In a react project we have an element “stickyButton” that is fixed on the bottom of the viewport on mobile. It is supposed to be displayed as long as none of some other buttons are visible. So, we try to use IntersectionObserver to check if these buttons are visible Each time a button becomes visi…
Get ID and Value from a checkbox: Return to model and use in method to insert into sql database
I’m trying to create a checkbox list where a user is supposed to be able to choose one or more options, based on the choice: this is supposed to be inserted to a database table, where the id of the choice is inserted. (This is on a page where a user can “edit garage”), therefore the garageid…
Why the function that inside the v-hover is called every times whenever hovering
Whenever hovering on the v-sheet, getBlueColor() function that is inside the v-hover is called. why it happened like that? exemple code And It is result after 5times hovering on the v-sheet (10) Call function func.getBlueColor Answer On top of what was told above, I do recommend the second part of my answer h…
How to merge the multiple object if the key value equal
I have an array of objects. In each object, I have the ‘date’ key. if the ‘date’ value is matched with another object, I need to add the ‘amount’ property and make it a new object. My expected output should be: Kindly help me to solve it. Answer You can use Array.reduce to …
antd wrapping custom input with auto-complete cause: Cannot read property ‘value’ of undefined
In antd with react, If I’ve something like the below, everything works fine: And that some intermediate component looks like this: Everything works fine, until, I try to add AutoComplete When I wrap the intermediate component with AutoComplete, like: Then on changing or giving input to intermediate comp…
JavaScript throws Uncaught Syntax Error: unexpected token (case from switch statement)
I am still new to JS and tried implementing a switch statement to change a HTML button color. Debugging console however throws Uncaught Syntax Error – Unexpected Token case. I have seen several syntax examples and similar stackoverflow questions, but it seems like I did everything else right; the ineffi…