Is there a way to select the root node of a d3.hierarchy based on a specific JSON key value? For instance, instead of having "A1" as the root node in the given JSON object, can we make "B1" the root node by referencing its name value?
{
"name": "A1",
"children": [
{
"name": "B1",
"children": [
{
"name": "B1-C1",
"value": 50
}
]
}
]
}
To solve this problem, we will utilize pure JavaScript without the need for any D3 method.
For reference, you can visit d3.hierarchy...
The function constructs a main node based on the provided hierarchical data. The data given must be an object that represents the root node.
In essence, all that is required is to correctly specify the object.
For instance, if using the entire object (which may not be desired), it would look like this:
const data = {
"name": "A1",
"children": [
{
"name": "B1",
"children": [
{
"name": "B1-C1",
"value": 50
}
]
}
]
};
const root = d3.hierarchy(data);
console.log(root)<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>Now, let's focus on extracting the specific object you desire. This can be achieved easily with the use of Array.prototype.find:
const root = d3.hierarchy(data.children.find(d => d.name === "B1"));
Below is the code snippet demonstrating this concept:
const data = {
"name": "A1",
"children": [{
"name": "B1",
"children": [{
"name": "B1-C1",
"value": 50
}]
}]
};
const root = d3.hierarchy(data.children.find(d => d.name === "B1"));
console.log(root)<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>I currently have a functional custom dynamic stamp that includes multiple input fields prompting the user. My goal now is to integrate a form text field onto the stamp after it has been rendered. For example, if someone stamps everything except for the led ...
When making an API call, I need the code after the call to wait until the API call finishes. In my function called this.api_call, it calls the API and only returns an array returnValue once the call is complete. let returnValue = this.api_call(data); // ...
Is there a way to dynamically change the navbar items based on the URL without having separate navbar components for each side? My current navbar design features 3 links on the left side and 3 links on the right, but I want to display only one side at a ti ...
With a proficiency in CSS, HTML, and some knowledge of Jquery and PHP, I aspire to become a Front End Web Developer. However, my lack of understanding in Javascript is holding me back. I acquired my current skillset by rapidly learning over 9 months while ...
<a id="compareCompanies" b:onclick="needsController.showQuotes = true;" href="#">Compare companies</a> Below is the Selenium Webdriver JavaScript code using Mocha: driver.wait(function () { driver.findElement(webdriver.By.id("compareCompa ...
I am working with a JsonResult that includes validation and sets the response status code to 400. It also returns a Json object with a custom variable called errorMessage. When using JQuery AJAX in my view, I need to access the value of the errorMessage v ...
Is there a way to implement an input field with debounced search where the value is passed from the parent component? Currently, when I pass the value from the parent component it doesn't work as expected. What would be the correct approach to make th ...
I have developed a messaging system using Vue. The latest messages are displayed from bottom to top. I want to automatically scroll to the end of a conversation when it is clicked and all the messages have been loaded via axios. Conversation Messages Comp ...
Can anyone help me extract the value "Yes, I am a Speaker" from this code using Javascript DOM element with getElementById? The challenge is that the value is nested inside a list element without any specific attributes. Each block of code has a unique l ...
I have a unique collection of product names along with their respective versions stored in a multidimensional array. My goal is to design an interactive interface that allows users to first select a product from a drop-down menu and then choose the version ...
Can I selectively show specific layers from a kmz file on my map? My current setup involves using the ArcGIS API for JavaScript. Specifically, I want to display only folders related to the current day outlook from a KMZ file provided by the NWS. There are ...
My Node.js application utilizes Electron v15.3.1 and includes a Swagger UI for OAS file viewing, specifically version 4.6.1. Due to a security vulnerability in the Swagger UI, I need to upgrade it. Initially, I attempted to resolve the issue by running np ...
tldr: For more information, please visit the repository. The common.js file includes all dependencies, even though only one is used on the current page. http://localhost:3000/components/ComponentOne http://localhost:3000/components/ComponentTwo Live dem ...
I have integrated an existing web application developed using vue.js. Below is the code snippet: function () { var e = this, t = e.$createElement, n = e._self._c || t; return e.messag ...
My Objective As a user presses enter, I want to target specific input elements with a data-index attribute value between 0-2 and of type text. Then, I plan to check their attribute values using a switch statement to perform certain actions. Presented bel ...
When I send an axios request to an Express URL called "getstatus" in my local development environment, everything works fine. However, once the files are uploaded to a server, the URL path still contains "localhost." this.$axios.get('api/getstatus&ap ...
Instead of: if ( ! $('#XX').is(':visible) ) Is there a property named invisible? I tested that one out, but it seems to not work. Appreciate the help! ...
Currently, I am facing an issue with populating an HTML table using JSON data. The problem arises when I try to populate the table with the JSON data that was provided to me. After careful examination, I suspect that the issue might lie in the formatting o ...
Currently, I am using a Node.js Server with the following configuration: app.use(express.static(__dirname + '/public')); However, I am facing an issue when trying to execute a php file using the XMLHttpRequest function like this: var xhttp = n ...
I am attempting to combine/select multiple meshes as a group. Currently, my code looks like this: //wrapper <group onPointerOver={(e) => getOverEvent(e)} onPointerOut={(e) => getOutEvent(e)} onPointer ...