By changing the values in the input tag, a list is updated and styled using css an dynamic colors.
Last active
December 14, 2015 21:18
-
-
Save vertighel/5149663 to your computer and use it in GitHub Desktop.
Input an array and update a list
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!doctype html> | |
| <meta charset="utf-8"> | |
| <title>Update a list</title> | |
| <style type="text/css"> | |
| body,h1{font-family:"Helvetica Neue",Helvetica,sans-serif; font-weight:300;} | |
| li{ margin:1px; color:white; text-align:right; padding-right:2px; } | |
| li:hover{opacity:0.7;} | |
| :invalid{background-color:pink} | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <h1>click on the bars</h1> | |
| <input id="inp" value="1,23,42,20,11,33,21" pattern="(\d+)(,\s*\d+)*" required> | |
| <label for="inp">change me</label> | |
| <script> | |
| var w = {min:"10px",max:"500px"} | |
| var list = d3.select("body").append("ul").style("width",w.max) | |
| var cscale = d3.scale.linear() | |
| .range(["steelblue","orange"]) | |
| var wscale = d3.scale.linear() | |
| .range([w.min,w.max]) | |
| update() | |
| d3.select("input").on("change",update) | |
| function update(){ | |
| var array = d3.select("input") | |
| .property("value").split(",") | |
| .map(function(d) { return(+d) }) | |
| cscale.domain(d3.extent(array)) | |
| wscale.domain(d3.extent(array)) | |
| var elem = list.selectAll("li").data(array); | |
| elem.enter() | |
| .append("li") | |
| .style("width", w.min) | |
| .style("background-color", "green") | |
| elem.text(function(d){return d}) | |
| .transition() | |
| .style("width", function(d){return wscale(d)}) | |
| .style("background-color", function(d){return cscale(d)}) | |
| elem.on("click",function(d,i){d3.select("h1").text("list item "+i+" has value "+d)}) | |
| elem.exit() | |
| .transition() | |
| .style("background-color", "red") | |
| .style("width", w.min) | |
| .remove() | |
| } | |
| </script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment