js-x-ray
astexplorer
Our great sponsors
js-x-ray | astexplorer | |
---|---|---|
8 | 43 | |
196 | 5,942 | |
2.0% | - | |
8.7 | 6.0 | |
7 days ago | 3 days ago | |
JavaScript | JavaScript | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
js-x-ray
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JS-X-Ray 6.0
If you are new in town, JS-X-Ray is an open source JavaScript SAST (Static Application Security Testing). The tool analyzes your JavaScript sources for patterns that may affect the security and quality of your project 😎.
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📦 Everything you need to know: package managers
@nodesecure/js-x-ray, a SAST scanner (A static analyser for detecting most common malicious patterns)
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A technical tale of NodeSecure - Chapter 2
I'm back at writing for a new technical article on NodeSecure. This time I want to focus on the SAST JS-X-Ray 🔬.
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How to respond to growing supply chain security risks?
And it is happening right now. Github is opening the GitHub Advisory Database to community submissions. Awesome community NodeSecure builds cool things like scanner and js-x-ray. There are also lockfile-lint, LavaMoat, Jfrog-npm-tools (and I am sure there is more).
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NodeSecure - What's new in 2022 ?
Static Analysis is powered by @nodesecure/js-x-ray and @nodesecure/scanner.
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A technical tale of NodeSecure - Chapter 1
Execute NodeSecure/JS-X-Ray on each JavaScript files.
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Announcing new Node-Secure back-end
JS-X-Ray - SAST Scanner
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JS-X-Ray 3.0.0
I have been working every night of the week on a new major version of my open-source JavaScript SAST JS-X-Ray. I've been looking forward to making significant changes to the code for several months now...
astexplorer
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Understanding Code Structure: A Beginner's Guide to Tree-sitter
You can play with your code here, and visualise ASTs for the same.
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What is an Abstract Syntax Tree in Programming?
Website
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How to create your own Eslint rule with tests, boosting the DX, and code-review
To understand this syntax, I recommend exploring AST Explorer. You will have a better view of how the AST of JavaScript works and how to correlate it with the Eslint syntaxy:
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Programming from Top to Bottom - Parsing
You can never mistake type_declaration with an identifier, otherwise the program will not work. Aside from that constraint, you are free to name them whatever you like, there is no one standard, and each parser has it own naming conventions, unless you are planning to use something like LLVM. If you are interested, you can see examples of naming in different language parsers in the AST Explorer.
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ESLint: under the hood
The rule that I want to write will be called not-allows-underscore: the idea is to abolish the use of underscores when declaring variables or functions. It's a real dummy rule, but it should be enough to see in action the concepts that we have discussed earlier. The first thing that I would do is to go to AST Explorer, write down a code that declares variables and functions (both standard and arrows one) and take a look at what type of node is the one that encodes the identifier. Doing that, I found out that the node type of my interest is Identifier, what a surprise! 🤣. In particular, the structure of the node holds the string used as identifier in the name property.
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😱 ESlint over Conventions - You have Not unlocked the power of ESlint 😱
All the information about the API, AST node names, AST Explorer, etc. you can read in the official documentation. I’m just going to show examples of how to automate the check-up of our created conventions.
- AST Exploret
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200 Web-Based, Must-Try Web Design and Development Tools
AST Viewer
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Building a JSON Parser from scratch with JS 🤯
If you want to see how the AST of popular languages looks, I recommend the AST Explorer. It supports various languages, and you can view the complete AST and navigate through the nodes. If you want to go further, you can try to copy some logic from an existing parser and implement it in your own, such as calculating an expression according to precedence order, for example: 1 + 2 * 3 (which is 7, not 9).
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Creating my own typescript compiler
https://astexplorer.net/ is a good resource/playground for understanding ASTs and transpilers.
What are some alternatives?
cli - JavaScript security CLI that allow you to deeply analyze the dependency tree of a given package or local Node.js project.
deno_swc - The SWC compiler for Deno.
ci - NodeSecure tool enabling secured continuous integration
gogocode - GoGoCode is a transformer for JavaScript/Typescript/HTML based on AST but providing a more intuitive API.
report - NodeSecure HTML & PDF report generator for any public and/or private git repositories.
vscode-language-tree - VSCode tree format support
vulnera - Programmatically fetch security vulnerabilities with one or many strategies (NPM Audit, Sonatype, Snyk, Node.js DB).
ChakraCore - ChakraCore is an open source Javascript engine with a C API.
Governance - NodeSecure Governance (Code of conduct & Contribution guidelines)
Acorn - A small, fast, JavaScript-based JavaScript parser
types - Typescript definitions for npm registry content
proposal-type-annotations - ECMAScript proposal for type syntax that is erased - Stage 1