The continuous.tickFormat() function is used to change the format of the tick values. It returns a number format function that is suitable for displaying a tick value.
Syntax:
continuous.tickFormat( count, specifier )
Parameters: This function accepts two parameters as mentioned above and described below.
- count: It is the number of tick values to be used. It is an optional parameter.
- specifier: It is a string which specifies the format to be used. It is an optional parameter.
Return Values: This function does not return anything.
The program below illustrates the continuous.tickFormat() function in D3.js:
Example 1:
HTML
<!DOCTYPE html> <html>   <head>     </script>     <script src=     </script>     <script src=     </script>     <script src=     </script> </head>   <body>     <h1 style="color: green">         neveropen     </h1>       <p>continuous.tickFormat() Function </p>       <script>         var x = d3.scaleLinear()             .domain([0, 1])             .range([1, 2, 3, 4, 5, 6]);           var ticks = x.ticks(3)         var tickFormat = x.tickFormat(3, " %");           document.write("<h3>" +             ticks.map(tickFormat) +             "</h3>");     </script> </body>   </html> |
Output:
Example 2:
HTML
<!DOCTYPE html> <html>   <head>     </script>     <script src=     </script>     <script src=     </script>     <script src=     </script> </head>   <body>     <h1 style="color: green">         neveropen     </h1>       <p>continuous.tickFormat() Function </p>       <script>         var x = d3.scaleLinear()             .domain([0, 1])             .range(["red", "blue", "green", "orange"]);           var ticks = x.ticks(5)         var tickFormat = x.tickFormat(5, " $");           document.write("<h3>" +             ticks.map(tickFormat) +             "</h3>")     </script> </body>   </html> |
Output:
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