How to change the color of a d3.js axis line?

@shyann 

To change the color of a d3.js axis line, you can use the following code:

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// Select the axis line element and change its color
d3.selectAll(".axis path")
    .style("stroke", "blue"); // Change the color to blue

// Select the tick marks on the axis and change their color
d3.selectAll(".axis line")
    .style("stroke", "blue"); // Change the color to blue

In this code snippet, we first select the axis line element using the .selectAll(".axis path") method and then use the .style("stroke", "blue") method to change its color to blue. We also select the tick marks on the axis using the .selectAll(".axis line") method and change their color to blue in a similar way.

You can replace the "blue" value with any other valid color value to change the color of the axis line to your desired color.