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babel-plugin-transform-define
Advanced tools
Changelog
2.1.4
Readme
$ npm install --save-dev babel-plugin-transform-define
.babelrc
{
"plugins": [
["transform-define", {
"process.env.NODE_ENV": "production",
"typeof window": "object"
}]
]
}
.babelrc.js
// E.g., any dynamic logic with JS, environment variables, etc.
const overrides = require("./another-path.js");
module.exports = {
plugins: [
["transform-define", {
"process.env.NODE_ENV": "production",
"typeof window": "object",
...overrides
}]
]
};
babel-plugin-transform-define
can transform certain types of code as a babel transformation.
Identifiers
.babelrc
{
"plugins": [
["transform-define", {
"VERSION": "1.0.0",
}]
]
}
Source Code
VERSION;
window.__MY_COMPANY__ = {
version: VERSION
};
Output Code
"1.0.0";
window.__MY_COMPANY__ = {
version: "1.0.0"
};
Member Expressions
.babelrc
{
"plugins": [
["transform-define", {
"process.env.NODE_ENV": "production"
}]
]
}
Source Code
if (process.env.NODE_ENV === "production") {
console.log(true);
}
Output Code
if (true) {
console.log(true);
}
Unary Expressions
.babelrc
{
"plugins": [
["transform-define", {
"typeof window": "object"
}]
]
}
Source Code
typeof window;
typeof window === "object";
Output Code
'object';
true;
Stable: Formidable is not planning to develop any new features for this project. We are still responding to bug reports and security concerns. We are still welcoming PRs for this project, but PRs that include new features should be small and easy to integrate and should not include breaking changes.
FAQs
Babel plugin that replaces member expressions and typeof statements with strings
The npm package babel-plugin-transform-define receives a total of 129,013 weekly downloads. As such, babel-plugin-transform-define popularity was classified as popular.
We found that babel-plugin-transform-define demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 19 open source maintainers collaborating on the project.
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