The d3.html() function in d3.js is used to fetch and read the file of type HTML. It fetches the file as text first then parses the file as HTML.
Syntax:
d3.html(input[, init]);
Parameters: This function accepts two parameters as mentioned above and described below:
- input: This parameter is the address of the input file.
- init: This parameter takes a function.
Note: Please create a file named sample.html before going through the below given example.
Example 1: Filename: sample.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content= "width=device-width, initial-scale=1.0"> </head> <body> <p>I am a p tag</p> <script> alert("This is from d3.html() function") </script> </body> </html> |
Filename: index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" path1tent= "width=device-width, initial-scale=1.0"/> </script> </head> <body> <script> d3.html("sample.html", function (d) { console.log(d); }); </script> </body> </html> |
Output:
Example 2: Filename: sample.html
<html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content= "width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <h3>D3.js | d3.html() Function</h3> <p>I am a p tag</p> </body> </html> |
Filename: index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" path1tent= "width=device-width,initial-scale=1.0"/> </head> <body> </script> <script> d3.html("sample.html", function (d) { d = [].map.call(d.querySelectorAll("p"), (p) => { var h3 = d.querySelector("h3"); document.write(`<h3>${h3.textContent}</h3>`); document.write(`<p>${p.textContent}</p>`); }) }); </script> </body> </html> |
Output:
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