How can I use javascript in specific posts without relying on a plugin?

1. How do I add JavaScript to WordPress without plugins?
2. How do I embed JavaScript in WordPress?
3. How do I make JavaScript code compatible with every browser?
4. Can I use JavaScript in WordPress?
5. Which is a best practice for working with WordPress CSS?
6. How do you call a CSS file in WordPress?
7. Where is embed code in WordPress?
8. How do I register a script in WordPress?
9. How do I add a script to my WordPress head?
10. What are the problems with JavaScript?
11. Is JavaScript supported by all browsers?
12. Why would you want to run JavaScript code outside of a browser?

How do I add JavaScript to WordPress without plugins?

Option 1: Upload a custom Javascript file

1. First, you need to prepare the file for inclusion.
2. Save your JavaScript code or file into a new test file with the . js extension.
3. Upload it into your site to the following folder: wp-content/themes/<theme-you-are-using>/js/
4. Go to Settings > Insert Headers and Footers.

How do I embed JavaScript in WordPress?

Add Custom JavaScript into your WordPress Site

1. Log in to your WordPress site.
2. Go to Plugins > Add new.
3. Search for "Header and Footer Scripts".
4. Click "Install Now" and activate the plugin.

How do I make JavaScript code compatible with every browser?

How to Handle Cross-Browser Compatibility Issues?

1. Avoid Using Incorrect (or no) DOCTYPE. Different web browsers behave differently, based on the default CSS rules. ...
2. Use Conditional Comments. ...
3. Use Cross-Browser Compliant Libraries. ...
4. Testing for Cross-Browser Compatibility.

Can I use JavaScript in WordPress?

JavaScript will work within WordPress. If used within the template files, most JavaScript will work fine. Here are a few tips to make your JavaScript work in WordPress.

Which is a best practice for working with WordPress CSS?

Design Best Practices

• Use tab to indent rather than spaces.
• Two lines between sections of CSS.
• Selectors should be listed on their own line, ending in a comma or brace.
• Name selectors using lowercase words separated by a hyphen.
• Use hex codes for colors of properties.
• Properties should be followed by a colon and a space.

How do you call a CSS file in WordPress?

Open up a text editor, create a new text file, save it as “custom. css” and upload it into a css folder in your active WordPress theme's folder (i.e. /wp-content/themes/theme/css/) via FTP. Download the functions. php file in your active WordPress theme's folder (i.e. /wp-content/themes/theme/) via FTP.

Where is embed code in WordPress?

Place your mouse cursor in the second text box titled Paste HTML to embed in website. Copy the code. In the text editor of your page or post, click on the Text tab in the upper right corner of the editor window. Locate the place on the page you want your embed to appear, and paste your embed code.

How do I register a script in WordPress?

WordPress will automatically include the registered script before it includes the enqueued script that lists the registered script's handle as a dependency.
...

How do I add a script to my WordPress head?

How to Manually Add Code to WordPress Header and Footer

1. Step 1: Prepare Code Snippets. To get you started, we'll give you a rough framework to add code to both your header and footer. To add code to your header, use this code snippet: ...
2. Step 2: Add Code Snippets to functions. php File in Child Theme.

What are the problems with JavaScript?

Language Presentation

• The Java in JavaScript. One might assume that JavaScript is some weird Java spin-off specifically designed to be run in a browser environment. ...
• Type System. ...
• IEEE 754: A Poor Choice. ...
• Aggressive Type Coercion. ...
• An Awesome Side Effect. ...
• Global Variables. ...
• Semicolon Insertion. ...
• Lack of Proper Scoping.

Is JavaScript supported by all browsers?

There are a number of modern JavaScript language features defined in recent versions of the specs (ECMAScript 6 / ECMAScript Next) that won't work in older browsers. ... They are not supported in IE at all but are supported across all modern browsers.

Why would you want to run JavaScript code outside of a browser?

Running JavaScript without/outside a browser means you are using node. js technology to execute your JavaScript code. This type of usage of javascript typically refers to backend programming where your javascript code will interact with your database and can be used to create RESTful APIs.