CODEWITHSUNDEEP
javascriptd3.js
SavageBooBoo
SavageBooBoo

Reputation: 35

d3-how to change colour of text based on value (if else)

I have a dataset, based on the values i want to print "Warning: joe has watched 14 cat videos today" in either black or red. if value is bigger than 10 its in red. How do i do this in using d3 or html formatting??

var dataset = [14, 5, 26, 23, 9];
d3.select("body").selectAll("p")
    .data(dataset)
    .enter()
    .append("p")
    .style('fill', 'darkOrange')
    .text(function(d, i){
        for (i=0; i<5; i++)
        {
            result = "Warning: Joe watched " + d + " cat videos today";
        }
        return result;
    });

Need it to look like this

enter image description here

Upvotes: 0

Views: 1697

Answers (1)

Nirali
Nirali

Reputation: 1786

Check this out

Add style attribute to change color of text according to value of array

.style("color", function(d, i) {
      return d > 10 ? "#ff0000" : "#000";
    })

And add if else in .text(function(d, i){} to change text according to condition see in my answer

var dataset = [14, 5, 26, 23, 9];
d3.select("body").selectAll("p")
    .data(dataset)
    .enter()
    .append("p")
    .style('fill', 'darkOrange')
    .style("color", function(d, i) {
      return d > 10 ? "#ff0000" : "#000";
    })
    .text(function(d, i){
        for (i=0; i<dataset.length; i++)
        {
            if(d > 10)
            {
              result = "Warning: Joe watched " + d + " cat videos today";
             }
             else
             {
              result = "Joe watched " + d + " cat videos today";
             }
        }
        return result;
    });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://d3js.org/d3.v5.min.js"></script>

Upvotes: 2

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