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Data Theft Repackaged: A Case Study in Malicious Wrapper Packages on npm
The Socket Research Team breaks down a malicious wrapper package that uses obfuscation to harvest credentials and exfiltrate sensitive data.
@swc/core-win32-arm64-msvc
Advanced tools
@swc/core-win32-arm64-msvc is a high-performance JavaScript/TypeScript compiler written in Rust. It is designed to be a drop-in replacement for Babel, offering faster compilation times and lower memory usage. This specific package is tailored for Windows on ARM64 architecture with the MSVC toolchain.
JavaScript/TypeScript Compilation
This feature allows you to compile JavaScript or TypeScript code to a specified ECMAScript version. The example demonstrates transforming modern JavaScript code to ES5.
const swc = require('@swc/core');
const inputCode = `const greet = (name) => { return `Hello, ${name}!`; };`;
swc.transform(inputCode, { jsc: { target: 'es5' } }).then(output => {
console.log(output.code);
});
Minification
This feature enables code minification, reducing the size of the output JavaScript file. The example shows how to minify a simple addition function.
const swc = require('@swc/core');
const inputCode = `function add(a, b) { return a + b; }`;
swc.transform(inputCode, { minify: true }).then(output => {
console.log(output.code);
});
Source Maps
This feature generates source maps, which are useful for debugging by mapping the transformed code back to the original source. The example demonstrates generating a source map for a simple function.
const swc = require('@swc/core');
const inputCode = `const greet = (name) => { return `Hello, ${name}!`; };`;
swc.transform(inputCode, { sourceMaps: true }).then(output => {
console.log(output.map);
});
Babel is a widely-used JavaScript compiler that allows you to use next-generation JavaScript, today. It has a rich plugin ecosystem and is highly configurable. Compared to @swc/core-win32-arm64-msvc, Babel is more mature and has broader community support, but it is generally slower in terms of compilation speed.
esbuild is an extremely fast JavaScript bundler and minifier. It is written in Go and offers blazing fast performance. While esbuild is faster than @swc/core-win32-arm64-msvc in many cases, it is less configurable and has fewer features related to code transformation.
Terser is a JavaScript parser, mangler, and compressor toolkit for ES6+. It is primarily used for minification. Compared to @swc/core-win32-arm64-msvc, Terser focuses solely on minification and does not offer the same breadth of features for code transformation.
@swc/core-win32-arm64-msvc
This is the aarch64-pc-windows-msvc binary for @swc/core
FAQs
Super-fast alternative for babel
We found that @swc/core-win32-arm64-msvc demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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