0.1.4 • Published 4 years ago
detect-es-version v0.1.4
detect-es-version
Given a package name, filepath, or string of code, returns the ecma version. You can try out the web app version here!
Usage
const { getEcmaVersion } = require('detect-es-version');
const ecmaVersion = getEcmaVersion('const foo = 123;');
console.log(ecmaVersion); // prints 2015
API
getPackageEcmaVersion(packageString, resolverOptions)
packageString
(String
): A string representing a package. e.g. “react”, “react@16.13.1” to be pulled from npm.resolverOptions
(Object
): An options object to pass to enhanced-resolve. This can be used to control which entry points are analyzed.- Returns (
Number
): The ecma version of the package. e.g. 2017.
getLocalPackageEcmaVersion(packagePath, resolverOptions)
packagePath
(String
): An absolute path to a package’s directory. The directory must contain an index file or package.json.resolverOptions
(Object
): An options object to pass to enhanced-resolve. This can be used to control which entry points are analyzed.- Returns (
Number
): The ecma version of the package. e.g. 2017.
getEntryPointEcmaVersion(entryPoint, resolverOptions)
entryPoint
(String
): An absolute path to an entry point.resolverOptions
(Object
): An options object to pass to enhanced-resolve. This can be used to control which entry points are analyzed.- Returns (
Number
): The ecma version of the package. e.g. 2017.
getEcmaVersion(content)
code
(String
|Object
): The source code or AST to inspect- Returns (
Number
): The ecma version of the source code or AST. e.g. 2017.
isEcmaVersionModern(ecmaVersion)
ecmaVersion
(Number
): A number representing an ECMA version. e.g. 5, 2015, or 2016- Returns (
Boolean
): True if the ECMA version is considered modern; False otherwise