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The MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps.
- Learn Web Development
Welcome to the MDN learning area. This set of articles aims...
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The MDN Web Docs site provides information about Open Web...
- Blog
The MDN blog publishes web development news, tutorials, and...
- HTML
HTML (HyperText Markup Language) is the most basic building...
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The MDN Web Docs site provides information about Open Web...
- CSS
Cascading Style Sheets (CSS) is a stylesheet language used...
- About
MDN Web Docs is an open-source, collaborative project...
- Performance API
The following interfaces are present in the Performance API:...
- Learn Web Development
- Outputting A Single Object
- Outputting Multiple Objects
- Using String Substitutions
- Styling Console Output
The simplest way to use the logging methods is to output a single object: The output looks something like this:
You can also output multiple objects by listing them when calling the logging method, like this: The output will look like this:
When passing a string to one of the console object's methods that accepts a string (such as console.log()), you may use these substitution strings: %o or %O 1. Outputs a JavaScript object. Clicking the object name opens more information about it in the inspector. %d or %i 1. Outputs an integer. Number formatting is supported, for example console.lo...
You can use the %cdirective to apply a CSS style to console output: The text before the directive will not be affected, but the text after the directive will be styled using the CSS declarations in the parameter. You may use %cmultiple times: The properties usable along with the %csyntax are as follows (at least, in Firefox — they may differ in oth...
MDN Web Docs is an open-source project and accepts contributions. There are many different tasks you can help with, from the simple (proofreading and correcting typos) to the complex (writing API documentation). To find out how to help, visit our Getting started page.
MDN Web Docs is an open-source, collaborative project documenting Web platform technologies, including CSS, HTML, JavaScript, and Web APIs. We also provide an extensive set of learning resources for beginning developers and students.
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Aug 18, 2016 · Signing in to MDN. Whenever you wish to make changes to MDN's content (such as editing, creating, or adding tags to pages), you need to be signed in. This article will explain the process of signing in and the authentication methods we support for identifying you as an MDN contributor.
