Create dynamic Word Cloud using d3.js - json

Question

I am using the following example as base and want to make it dynamic word cloud
https://github.com/jasondavies/d3-cloud
The data is added to the array but my word-cloud is not reflecting the newly added word(s):
<script>
var fill = d3.scale.category20();
var data = [{word:"Hello",weight:20},{word:"World",weight:10},{word:"Normally",weight:25},{word:"You",weight:15},{word:"Want",weight:30},{word:"More",weight:12},{word:"Words",weight:8},{word:"But",weight:18},{word:"Who",weight:22},{word:"Cares",weight:27}];
d3.layout.cloud().size([500, 500])
.words(data.map(function(d) {
return {text: d.word, size: d.weight};
}))
.padding(5)
.rotate(function() { return ~~(Math.random() * 2) * 90; })
.font("Impact")
.fontSize(function(d) { return d.size; })
.on("end", draw)
.start();
function draw(words) {
d3.select("body").append("svg")
.attr("width", 300)
.attr("height", 300)
.append("g")
.attr("transform", "translate(150,150)")
.selectAll("text")
.data(words)
.enter().append("text")
.style("font-size", function(d) { return d.size + "px"; })
.style("font-family", "Impact")
.style("fill", function(d, i) { return fill(i); })
.attr("text-anchor", "middle")
.attr("transform", function(d) {
return "translate(" + [d.x, d.y] + ")rotate(" + d.rotate + ")";
})
.text(function(d) { return d.text; });
}
function drawUpdate(words){
//alert(JSON.stringify(words)); //shows me the added data
d3.select("body").selectAll("text")
.data(words.map(function(d) {
return {text: d.word, size: d.weight};
}))
.style("font-size", function(d) { return d.size + "px"; })
.style("font-family", "Impact")
.style("fill", function(d, i) { return fill(i); })
.attr("text-anchor", "middle")
.text(function(d) { return d.text; });
}
setInterval(function () {
var d_new = data;
d_new.push({word: "Mappy",weight:35});
drawUpdate(d_new);
}, 1500);
</script>
Also, it refreshed the first time, but without the new word added. Could someone please rectify or point out what am I doing wrong in this.
Thanks

Answer 1

Thanks to Larks I was able to get it done. Here I am sharing the code if anyone else faces a similar issue, I hope it can help
<script>
var fill = d3.scale.category20();
var data = [{word:"Hello",weight:20},{word:"World",weight:10},{word:"Normally",weight:25},{word:"You",weight:15},{word:"Want",weight:30},{word:"More",weight:12},{word:"Words",weight:8},{word:"But",weight:18},{word:"Who",weight:22},{word:"Cares",weight:27}];
d3.layout.cloud().size([500, 500])
.words(data.map(function(d) {
return {text: d.word, size: d.weight};
}))
.padding(5)
.rotate(function() { return ~~(Math.random() * 2) * 90; })
.font("Impact")
.fontSize(function(d) { return d.size; })
.on("end", draw)
.start();
function draw(words) {
d3.select("body").append("svg")
.attr("width", 300)
.attr("height", 300)
.append("g")
.attr("transform", "translate(150,150)")
.selectAll("text")
.data(words)
.enter().append("text")
.style("font-size", function(d) { return d.size + "px"; })
.style("font-family", "Impact")
.style("fill", function(d, i) { return fill(i); })
.attr("text-anchor", "middle")
.attr("transform", function(d) {
return "translate(" + [d.x, d.y] + ")rotate(" + d.rotate + ")";
})
.text(function(d) { return d.text; });
}
function drawUpdate(words){
d3.layout.cloud().size([500, 500])
.words(words)
.padding(5)
.rotate(function() { return ~~(Math.random() * 2) * 90; })
.font("Impact")
.fontSize(function(d) { return d.size; })
.start();
d3.select("svg")
.selectAll("g")
.attr("transform", "translate(150,150)")
.selectAll("text")
.data(words).enter().append("text")
.style("font-size", function(d) { return d.size + "px"; })
.style("font-family", "Impact")
.style("fill", function(d, i) { return fill(i); })
.attr("transform", function(d) {
return "translate(" + [d.x, d.y] + ")rotate(" + d.rotate + ")";
})
.text(function(d) { return d.text; });
}
setInterval(function () {
var d_new = data;
d_new.push({word:randomWord(),weight:randomWeight()});
drawUpdate(d_new.map(function(d) {
return {text: d.word, size: d.weight};
}));
}, 1500);
function randomWord() {
var text = "";
var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
for( var i=0; i < 5; i++ )
text += possible.charAt(Math.floor(Math.random() * possible.length));
return text;
}
function randomWeight(){
var r = Math.round(Math.random() * 100);
return r;
}
</script>