D3.js tsv() Function

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The d3.tsv() function is used to read “.tsv” file or file with “tab” character as a delimiter. In the function if “init” is specified then it will fetch and go through the given function call.

Syntax:

d3.tsv(input[, init][, row])

Parameters: This function accepts three parameters as mentioned above and described below.

inputFile: This parameter take the input file address.
init: This parameter accepts a function call.
row: This parameter accepts a optional row conversion function.

Example 1:

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8" /> 
    <meta name="viewport" path1tent= 
        "width=device-width,   
        initial-scale=1.0" /> 
          
    <script src= 
        "https://d3js.org/d3.v4.min.js"> 
    </script> 
</head> 
  
<body> 
    <script> 
        // Data of sample.tsv file 
        // year    population 
        // 2010    3 
        // 2011    45 
        // 2009    68 
        // 2010    5 
        // 2014    59 
        // 2011    55 
        // 2005    5 
        d3.tsv("sample.tsv", function (d) { 
            console.log(d); 
        }); 
    </script> 
</body> 
  
</html> 

Note: Please create a file name “sample.tsv” and save it in the working folder before going through the code.

Output:

Example 2:

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8" /> 
    <meta name="viewport" path1tent= 
        "width=device-width,   
        initial-scale=1.0" /> 
  
    <script src= 
        "https://d3js.org/d3.v4.min.js"> 
    </script> 
</head> 
  
<body> 
    <script> 
        // Data of sample.tsv file 
        // x    y 
        // 15    9 
        // 5    0 
        // 3    10 
        // 6    51 
        // 35    11 
        d3.tsv("sample.tsv", function (d) { 
            return d; 
        }, (d) => { 
            d.forEach((e) => { 
                console.log(e) 
            }) 
        }); 
    </script> 
</body> 
  
</html> 

Output:

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