The d3.dsv() function in D3.js is a part of the request API that returns a request for the file of type DSV. The mime type is text/DSV. An optional row conversion function can be specified to map and filter row objects.
Syntax:
d3.dsv(delimiter, inputfile, function);
Parameters: This function accepts three parameters as mentioned above and described below:
- delimiter: It is the delimited such as “,” or “-” and so on that separates the columns.
- inputfile: It is the location of the input file.
- function: It is the function that is user-defined which performs certain actions to deal with the data.
Below given are a few examples of the function given above.
Note: Please create and save a file name sample.dsv before going with the code.
Example1:
HTML
<!DOCTYPE html>
< html lang = "en" >
< head >
< meta charset = "UTF-8" />
< meta
name = "viewport"
path1tent=" width = device -width,
initial-scale = 1 .0"/>
< title >D3.js dsv() Function</ title >
</ head >
< style ></ style >
< body >
< script src =
</ script >
< script src =
</ script >
< script src =
</ script >
< script >
d3.dsv(",", "sample.dsv", (data) => {
console.log(data);
});
</ script >
</ body >
</ html >
|
Output:
Example 2: When the delimiter is ” ” (space)
HTML
<!DOCTYPE html>
< html lang = "en" >
< head >
< meta charset = "UTF-8" />
< meta
name = "viewport"
path1tent=" width = device -width,
initial-scale = 1 .0"/>
< title >D3.js dsv() Function</ title >
</ head >
< style ></ style >
< body >
< script src =
</ script >
< script src =
</ script >
< script src =
</ script >
< script >
d3.dsv(" ", "sample.dsv", (data) => {
console.log(data.year, " ", data.population);
});
</ script >
</ body >
</ html >
|
Output:
Last Updated :
17 Aug, 2020
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