The band.rangeRound() function is used to set the range of the scale to the specified two-element array along with this it also set the round to true.
Syntax:
band.rangeRound([range])
Parameters: This function accepts single parameters as given above and described below:
- range: This parameter accepts a two-element array of numbers.
Return Values: This function does not return anything.
Below given are a few examples of the function given above.
Example 1:
<!DOCTYPE html> <html lang = "en"> <head>     <meta charset = "UTF-8" />     <meta name = "viewport"        path1tent = "width=device-width,         initial-scale = 1.0"/>     <script src =     </script>       </head> <body>     <script>     // Creating the band scale with     // specified domain and range.         var band = d3.scaleBand()                     .domain([10, 20, 30, 40, 50])                     .range([0, 1]);           console.log("Without rangeRound function:");         console.log("band(10): ", band(10));         console.log("band(20): ", band(20));                 console.log("With rangeRound function:");                 var band = d3.scaleBand()                     .domain([10, 20, 30, 40, 50])                     .rangeRound([0, 1]);                 console.log("band(10): ", band(10));         console.log("band(20): ", band(20));     </script> </body> </html> |
Output:
Example 2:
<!DOCTYPE html> <html lang = "en"> <head>     <meta charset = "UTF-8" />     <meta name = "viewport"        path1tent = "width=device-width,         initial-scale = 1.0"/>     <script src =     </script>       </head> <body>     <script>     // Creating the band scale with      // specified domain and range.         var band = d3.scaleBand()                     .domain([1, 2, 3, 4])         // When range is in string                     .range(["0", "10"]);         console.log("Without rangeRound function:");         console.log("band(1): ", band(1));         console.log("band(2): ", band(2));                 console.log("With rangeRound function:");                 var band = d3.scaleBand()                     .domain([1, 2, 3, 4, 5])                     .rangeRound(["0", "10"]);                 console.log("band(1): ", band(1));         console.log("band(2): ", band(2));     </script> </body> </html> |
Output:
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