How to read data from file in d3.js?

Member

by domenico , in category: Javascript , 2 months ago

How to read data from file in d3.js?

Facebook Twitter LinkedIn Telegram Whatsapp

1 answer

Member

by deron , 2 months ago

@domenico 

To read data from a file in d3.js, you can use the d3.csv(), d3.json(), or d3.text() functions based on the file format.

  1. Reading data from a CSV file:
1
2
3
4
5
6
7
8
9
d3.csv("filename.csv")
  .then(function(data) {
    // Process the data
    console.log(data);
  })
  .catch(function(error) {
    // Handle any error while reading the file
    console.error(error);
  });


  1. Reading data from a JSON file:
1
2
3
4
5
6
7
8
9
d3.json("filename.json")
  .then(function(data) {
    // Process the data
    console.log(data);
  })
  .catch(function(error) {
    // Handle any error while reading the file
    console.error(error);
  });


  1. Reading data from a text file:
1
2
3
4
5
6
7
8
9
d3.text("filename.txt")
  .then(function(text) {
    // Process the text data
    console.log(text);
  })
  .catch(function(error) {
    // Handle any error while reading the file
    console.error(error);
  });


Ensure that you have the d3 library imported before using these functions. Additionally, make sure that the file path is correct and that the file is accessible.