guillaume@ubuntu:~/0x15$\n","mainEntity":{"@type":"Question","name":"Here is a step-by-step guide on how to write a JavaScript script that updates the text color of the

element to red (#FF0000):\n\n1. Open your text editor and create a new file named `0-script.js`.\n\n2. In this file, you will use the `document.querySelector` method to select the HTML tag. This method returns the first Element within the document that matches the specified selector, or group of selectors.\n\n3. To select the `

` element, you will pass the string 'header' to the `document.querySelector` method. Here is how you do it:\n\n```javascript\nlet header = document.querySelector('header');\n```\n\n4. Now that you have a reference to the `

` element, you can change its text color to red (#FF0000) by setting its `style.color` property to '#FF0000'. Here is how you do it:\n\n```javascript\nheader.style.color = '#FF0000';\n```\n\n5. Save the `0-script.js` file.\n\n6. Now, you need to link this JavaScript file to your HTML file. You can see that this is already done in the provided HTML file:\n\n```html\n\n```\n\n7. Save the HTML file and open it in your web browser. You should see that the text color of the `

` element has been changed to red.\n\nHere is the complete JavaScript code:\n\n```javascript\nlet header = document.querySelector('header');\nheader.style.color = '#FF0000';\n```\n\nPlease note that this code should be placed in a JavaScript file and linked to your HTML file using the `\n```\n\n7. Save the HTML file and open it in your web browser. You should see that the text color of the `

Write a JavaScript script that updates the text color of the <header> element to red (#FF0000):You must use document.querySelector to select the HTML tagYou can’t use the JQuery APIPlease test with this HTML file in your browser:guillaume@ubuntu:~/0x15$ cat 0-main.html <!DOCTYPE html><html lang="en"> <head> <title>Holberton School</title> </head> <body> <header> First HTML page </header> <footer> Holberton School - 2017 </footer> <script type="text/javascript" src="0-script.js"></script> </body></html>guillaume@ubuntu:~/0x15$

Question

Write a JavaScript script that updates the text color of the <header> element to red (#FF0000):You must use document.querySelector to select the HTML tagYou can’t use the JQuery APIPlease test with this HTML file in your browser:guillaume@ubuntu:~/0x15 $cat 0-main.html <!DOCTYPE html><html lang="en"> <head> <title>Holberton School</title> </head> <body> <header> First HTML page </header> <footer> Holberton School - 2017 </footer> <script type="text/javascript" src="0-script.js"></script> </body></html>guillaume@ubuntu:~/0x15$

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Solution

Here is a step-by-step guide on how to write a JavaScript script that updates the text color of the <header> element to red (#FF0000):

Open your text editor and create a new file named 0-script.js.
In this file, you will use the document.querySelector method to select the HTML tag. This method returns the first Element within the document that matches the specified selector, or group of selectors.
To select the <header> element, you will pass the string 'header' to the document.querySelector method. Here is how you do it:

let header = document.querySelector('header');

Now that you have a reference to the <header> element, you can change its text color to red (#FF0000) by setting its style.color property to '#FF0000'. Here is how you do it:

header.style.color = '#FF0000';

Save the 0-script.js file.
Now, you need to link this JavaScript file to your HTML file. You can see that this is already done in the provided HTML file:

<script type="text/javascript" src="0-script.js"></script>

Save the HTML file and open it in your web browser. You should see that the text color of the <header> element has been changed to red.

Here is the complete JavaScript code:

let header = document.querySelector('header');
header.style.color = '#FF0000';

Please note that this code should be placed in a JavaScript file and linked to your HTML file using the <script> tag.

This problem has been solved

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