JS and JSX specimens
Compare a component with a Node.js exercise
Load one specimen into the converter to see how JSX markup, expressions, chains, and template literals behave on real pages.
Course progress component
A JSX component with props, array filtering, mapped elements, conditional output, and accessibility attributes. It reveals whether markup and embedded expressions stay easy to follow across lines.
Log level analyzer
A plain JavaScript exercise using destructuring, reduce, computed properties, sorting, template literals, and formatted output—useful for testing dense expressions on a PDF page.
Source family
One JavaScript page, four common file extensions
A JavaScript to PDF request can mean a browser script, Node.js module, or JSX component. Code2PDF treats each as source text: it keeps the tokens and layout available for review without importing the module or rendering the interface. Open .js, .jsx, .mjs, or .cjs files directly; JSX markup is highlighted inside the JavaScript mode.
- Standard script
- .js
- JSX source
- .jsx
- Explicit ES module
- .mjs
- Explicit CommonJS
- .cjs
Page-aware source
Prepare JavaScript and JSX for a narrow page
JavaScript often combines callbacks, object literals, chained methods, and embedded markup. The converter preserves the submitted layout, so page readability depends on meaningful line breaks rather than automatic beautification.
Break chains by operation
Place each stage of a long map, filter, reduce, or promise chain on its own indented line. A reviewer can then follow data flow even when a page break separates nearby functions.
Give JSX props room
Move long props onto separate lines and indent children beneath their parent tag. JSX is stricter than HTML, so keep closing tags, fragments, braces, and component capitalization visible.
Protect template literals
Backtick strings may contain line breaks and embedded expressions. Inspect the preview around each `${...}` placeholder so wrapping does not make literal text and JavaScript expressions look disconnected.
Respect significant line endings
JavaScript has automatic semicolon insertion rules in which line terminators can matter. Code2PDF does not rewrite statements, so format or lint the original file before producing the final source snapshot.
Submission setups
Match the PDF settings to the JavaScript artifact
Use the runtime and code shape—not just the extension—to choose a practical layout.
JSX component review
React exercises and UI implementation excerpts
- A4 or Letter
- 11 px text
- Light theme
- Line numbers on
- 1.5 cm margins
Extra horizontal room helps nested tags and prop expressions remain visually paired.
Node.js script
CLI, automation, and server-side coursework
- A4 or Letter
- 11–12 px text
- Title includes runtime
- Line numbers on
- Page numbers on
A runtime label distinguishes CommonJS, ES module, and host-specific APIs when code is read outside the project.
Technical appendix
Selected functions attached to a report
- Match report paper
- 10–11 px text
- Light theme
- Descriptive title
- 2 cm margins
Matching the report keeps citations such as “see line 42” stable and easy to verify.
ECMAScript context
Version clues that help a reviewer read modern JS
JavaScript syntax has expanded substantially. If an assignment targets a particular ECMAScript edition, browser baseline, or Node.js release, add that target to the PDF title or opening comment.
- The first ECMAScript editionThe first ECMA-262 edition standardized the language used by early JavaScript implementations.
- ECMAScript 5ES5 added strict mode and standardized features that had become common across implementations.
- ECMAScript 2015 / ES6The sixth edition introduced modules, classes, lexical bindings, promises, destructuring, iterators, and generators.
- A syntax extension, not an ECMAScript editionJSX places HTML-like markup inside JavaScript source. It is commonly used with React, but JSX and React are separate concepts.
Conversion boundary
Source listing, rendered interface, or generated PDF?
This converter answers the source-listing intent. It produces a document that shows JavaScript or JSX code rather than interpreting what that code would create.
Preserved in the PDF
- Imports, exports, functions, comments, object literals, and template literals
- JSX tags, props, fragments, embedded expressions, and original indentation
- Selectable syntax-colored text with optional line and page numbers
- The supplied source order across conventional A4 or Letter pages
Not part of this conversion
- React rendering, browser DOM output, CSS appearance, canvas content, or screenshots
- Node.js execution, console output, network calls, package installation, or module resolution
- PDF creation APIs such as jsPDF, PDFKit, React PDF, or JSX-to-PDF libraries
- Bundling, transpilation, lint fixes, minified-code beautification, or test results
Preflight review
Six checks before submitting JavaScript source
Review the PDF as a standalone artifact; the grader may not have your editor, dependencies, or running application.
- 01
Run the original tests and formatter in the project before opening the source here.
- 02
State the expected browser, Node.js release, module system, or framework version when the rubric depends on it.
- 03
Use .jsx for JSX when the instructor or toolchain expects the distinction, and confirm the selected syntax mode.
- 04
Remove tokens, private URLs, environment values, user data, and unrelated generated or minified code.
- 05
Inspect nested JSX, template literals, method chains, and long imports for confusing wraps.
- 06
Open the downloaded PDF and verify the title, filename, pagination, line references, and selectable text.
JS & JSX conversion questions
What “convert JavaScript to PDF” means on this page
How do I convert a JS file to PDF?
Open a .js file or paste its source, choose the document settings, inspect each preview page, and download the PDF. No JavaScript runtime is required for formatting.
Can I convert a JSX file to PDF online?
Yes. Open a .jsx file or load the component example above. The result contains highlighted JSX source; it is not a screenshot of the rendered component.
Does JSX to PDF render my React interface?
No. JSX is treated as a source-code syntax extension. Code2PDF does not start React, apply CSS, load assets, or turn the component tree into a visual page.
Is this a jsPDF or JavaScript PDF-generation library?
No. Libraries such as jsPDF generate documents from a running program. This converter creates a readable listing of the JavaScript program itself.
Can it convert JavaScript produced by Claude or another AI tool?
Yes, if you have the source as plain text or a supported file. Review, test, and remove private values from AI-generated code before submitting it.
Are Node.js, .mjs, and .cjs source files supported?
Yes. .mjs and .cjs files open in JavaScript mode along with .js files. The converter records the source but does not run Node.js or resolve packages.
Will the converter beautify compressed JavaScript?
No. It preserves the supplied text. Run a trusted formatter in your development environment first if you need minified source expanded.
Is my JavaScript uploaded or executed?
No. Source formatting and PDF export happen locally in the browser, and the source is never evaluated. Normal website asset requests still occur.
Primary references
Where the JavaScript-specific guidance comes from
The guidance on this page follows primary documentation for JavaScript, its common runtimes, and JSX syntax.
The normative language specification and its edition history.
MDN Web DocsJavaScript lexical grammarReference for comments, line terminators, tokens, identifiers, and automatic semicolon insertion.
MDN Web DocsJavaScript modulesPractical reference for import, export, module scripts, and module behavior.
React documentationWriting Markup with JSXOfficial explanation of JSX syntax and how it differs from HTML and React itself.