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---
id: 587d7fa7367417b2b2512bc5
title: Work with Dynamic Data in D3
challengeType: 6
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forumTopicId: 301498
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dashedName: work-with-dynamic-data-in-d3
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---
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# --description--
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The last two challenges cover the basics of displaying data dynamically with D3 using the `data()` and `enter()` methods. These methods take a data set and, together with the `append()` method, create a new DOM element for each entry in the data set.
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In the previous challenge, you created a new `h2` element for each item in the `dataset` array, but they all contained the same text, `New Title` . This is because you have not made use of the data that is bound to each of the `h2` elements.
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The D3 `text()` method can take a string or a callback function as an argument:
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```js
selection.text((d) => d)
```
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In the example above, the parameter `d` refers to a single entry in the dataset that a selection is bound to.
Using the current example as context, the first `h2` element is bound to 12, the second `h2` element is bound to 31, the third `h2` element is bound to 22, and so on.
# --instructions--
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Change the `text()` method so that each `h2` element displays the corresponding value from the `dataset` array with a single space and the string `USD` . For example, the first heading should be `12 USD` .
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# --hints--
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The first `h2` should have the text `12 USD` .
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```js
assert($('h2').eq(0).text() == '12 USD');
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```
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The second `h2` should have the text `31 USD` .
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```js
assert($('h2').eq(1).text() == '31 USD');
```
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The third `h2` should have the text `22 USD` .
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```js
assert($('h2').eq(2).text() == '22 USD');
```
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The fourth `h2` should have the text `17 USD` .
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```js
assert($('h2').eq(3).text() == '17 USD');
```
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The fifth `h2` should have the text `25 USD` .
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```js
assert($('h2').eq(4).text() == '25 USD');
```
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The sixth `h2` should have the text `18 USD` .
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```js
assert($('h2').eq(5).text() == '18 USD');
```
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The seventh `h2` should have the text `29 USD` .
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```js
assert($('h2').eq(6).text() == '29 USD');
```
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The eighth `h2` should have the text `14 USD` .
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```js
assert($('h2').eq(7).text() == '14 USD');
```
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The ninth `h2` should have the text `9 USD` .
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```js
assert($('h2').eq(8).text() == '9 USD');
```
# --seed--
## --seed-contents--
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```html
< body >
< script >
const dataset = [12, 31, 22, 17, 25, 18, 29, 14, 9];
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d3.select("body").selectAll("h2")
.data(dataset)
.enter()
.append("h2")
// Add your code below this line
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.text("New Title");
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// Add your code above this line
< / script >
< / body >
```
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# --solutions--
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```html
< body >
< script >
const dataset = [12, 31, 22, 17, 25, 18, 29, 14, 9];
d3.select("body").selectAll("h2")
.data(dataset)
.enter()
.append("h2")
.text((d) => `${d} USD` );
< / script >
< / body >
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```