Saturday, October 25, 2025
HomeLanguagesJavascriptD3.js interpolateString() function

D3.js interpolateString() function

The intepolateString() function in D3.js is used to return the interpolator function between two strings. For each number in string “b” the function finds a number for it in string “a”, then it returns the interpolation of these numbers using Number interpolator function, and the remaining part of string “b” is used as a template.

Syntax:

d3.intepolateString(a, b);

Parameters: It takes two parameters:

  • a: It is a string of characters and numbers.
  • b: It is also a string of characters and numbers.

Returns: It returns the interpolator function.

Below given are a few examples of the above function.

Example 1:

html




<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport"
        content="width=device-width,
                 initial-scale=1.0">
  <title>Document</title>
</head>
<style>
</style>
<body>
  <!--fetching from CDN of D3.js -->
  <script type = "text/javascript"
          src =
  </script>
  <script>
    let s1="42 neveropen 16";
    let s2="500 Geeks 10 for 20 neveropen"
    let interpolatoreFunc=d3.interpolateString(s1, s2);
    /* Note that the string alphabets of string b are
      same as output but the Numbers are changed.*/
    console.log(interpolatoreFunc(0.25))
    console.log(interpolatoreFunc(5))
    console.log(interpolatoreFunc(0))
    console.log(interpolatoreFunc())
  </script>
</body>
</html>


Output:

Example 2:

html




<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport"
        content="width=device-width,
                 initial-scale=1.0">
  <title>Document</title>
</head>
<style>
</style>
<body>
  <!--Fetching from CDN of D3.js -->
  <script type = "text/javascript"
          src = "https://d3js.org/d3.v4.min.js">
  </script>
  <script>
    try{
     // Trying numbers with this function
      console.log(d3.interpolateString(24, 15)(0.26))
      // If only string is given and no Number
      console.log(
d3.interpolateString("neveropen", "for Geeks")(0.5))
      // If a is a number and b is a string
      console.log(
d3.interpolateString(24, "Geeks for neveropen")(0.8))
      // If a is not given
      console.log(
d3.interpolateString("13 neveropen")(0.46))
      console.log(
typeof d3.interpolateString("2 asda", "13 neveropen"))
    }
    catch(err){
      throw err;
    }
     
  </script>
</body>
</html>


Output:

Whether you’re preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, neveropen Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we’ve already empowered, and we’re here to do the same for you. Don’t miss out – check it out now!
Dominic
Dominichttp://wardslaus.com
infosec,malicious & dos attacks generator, boot rom exploit philanthropist , wild hacker , game developer,
RELATED ARTICLES

Most Popular

Dominic
32361 POSTS0 COMMENTS
Milvus
88 POSTS0 COMMENTS
Nango Kala
6728 POSTS0 COMMENTS
Nicole Veronica
11892 POSTS0 COMMENTS
Nokonwaba Nkukhwana
11954 POSTS0 COMMENTS
Shaida Kate Naidoo
6852 POSTS0 COMMENTS
Ted Musemwa
7113 POSTS0 COMMENTS
Thapelo Manthata
6805 POSTS0 COMMENTS
Umr Jansen
6801 POSTS0 COMMENTS