@babel/plugin-proposal-do-expressions
Advanced tools
Package description
@babel/plugin-proposal-do-expressions is a Babel plugin that allows you to use 'do' expressions in your JavaScript code. 'Do' expressions enable you to use blocks of code as expressions, which can be particularly useful for complex conditional logic or for creating more readable code.
Basic Do Expression
This feature allows you to use a block of code as an expression. In this example, the 'do' expression evaluates the conditional logic and assigns the result to the 'result' variable.
const result = do {
if (x > 10) {
'greater';
} else {
'lesser';
}
};Do Expression with Multiple Statements
This feature allows you to include multiple statements within a 'do' expression. Here, a temporary variable 'temp' is calculated and used within the conditional logic.
const result = do {
let temp = x * 2;
if (temp > 10) {
'greater';
} else {
'lesser';
}
};Do Expression with Function Call
This feature demonstrates how you can include function calls within a 'do' expression. The 'calculate' function is defined and called within the 'do' block, and its result is assigned to the 'result' variable.
const result = do {
function calculate(y) {
return y * 2;
}
calculate(x);
};This Babel plugin allows you to inline environment variables into your code. While it doesn't provide 'do' expressions, it offers a way to manage environment-specific configurations, which can be useful for conditional logic based on environment variables.
babel-plugin-macros allows you to create custom compile-time transformations. While it doesn't directly offer 'do' expressions, it provides a way to create custom syntax and transformations, which can be used to achieve similar goals.
Changelog
v7.24.1 (2024-03-19)
babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators
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moduleName for @babel/runtime/regenerator imports (@nicolo-ribaudo)babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-class-properties
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babel-helper-create-class-features-plugin, babel-plugin-bugfix-safari-id-destructuring-collision-in-function-expression, babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-bugfix-v8-static-class-fields-redefine-readonly, babel-plugin-external-helpers, babel-plugin-proposal-async-do-expressions, babel-plugin-proposal-decorators, babel-plugin-proposal-destructuring-private, babel-plugin-proposal-do-expressions, babel-plugin-proposal-duplicate-named-capturing-groups-regex, babel-plugin-proposal-explicit-resource-management, babel-plugin-proposal-export-default-from, babel-plugin-proposal-function-bind, babel-plugin-proposal-function-sent, babel-plugin-proposal-import-attributes-to-assertions, babel-plugin-proposal-import-defer, babel-plugin-proposal-import-wasm-source, babel-plugin-proposal-json-modules, babel-plugin-proposal-optional-chaining-assign, babel-plugin-proposal-partial-application, babel-plugin-proposal-pipeline-operator, babel-plugin-proposal-record-and-tuple, babel-plugin-proposal-regexp-modifiers, babel-plugin-proposal-throw-expressions, babel-plugin-syntax-async-do-expressions, babel-plugin-syntax-decimal, babel-plugin-syntax-decorators, babel-plugin-syntax-destructuring-private, babel-plugin-syntax-do-expressions, babel-plugin-syntax-explicit-resource-management, babel-plugin-syntax-export-default-from, babel-plugin-syntax-flow, babel-plugin-syntax-function-bind, babel-plugin-syntax-function-sent, babel-plugin-syntax-import-assertions, babel-plugin-syntax-import-attributes, babel-plugin-syntax-import-defer, babel-plugin-syntax-import-reflection, babel-plugin-syntax-import-source, babel-plugin-syntax-jsx, babel-plugin-syntax-module-blocks, babel-plugin-syntax-optional-chaining-assign, babel-plugin-syntax-partial-application, babel-plugin-syntax-pipeline-operator, babel-plugin-syntax-record-and-tuple, babel-plugin-syntax-throw-expressions, babel-plugin-syntax-typescript, babel-plugin-transform-arrow-functions, babel-plugin-transform-async-generator-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoped-functions, babel-plugin-transform-block-scoping, babel-plugin-transform-class-properties, babel-plugin-transform-class-static-block, babel-plugin-transform-classes, babel-plugin-transform-computed-properties, babel-plugin-transform-destructuring, babel-plugin-transform-dotall-regex, babel-plugin-transform-duplicate-keys, babel-plugin-transform-dynamic-import, babel-plugin-transform-exponentiation-operator, babel-plugin-transform-export-namespace-from, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-for-of, babel-plugin-transform-function-name, babel-plugin-transform-instanceof, babel-plugin-transform-jscript, babel-plugin-transform-json-strings, babel-plugin-transform-literals, babel-plugin-transform-logical-assignment-operators, babel-plugin-transform-member-expression-literals, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd, babel-plugin-transform-new-target, babel-plugin-transform-nullish-coalescing-operator, babel-plugin-transform-numeric-separator, babel-plugin-transform-object-assign, babel-plugin-transform-object-rest-spread, babel-plugin-transform-object-set-prototype-of-to-assign, babel-plugin-transform-object-super, babel-plugin-transform-optional-catch-binding, babel-plugin-transform-optional-chaining, babel-plugin-transform-parameters, babel-plugin-transform-private-methods, babel-plugin-transform-private-property-in-object, babel-plugin-transform-property-literals, babel-plugin-transform-property-mutators, babel-plugin-transform-proto-to-assign, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-display-name, babel-plugin-transform-react-inline-elements, babel-plugin-transform-react-jsx-compat, babel-plugin-transform-react-jsx-self, babel-plugin-transform-react-jsx-source, babel-plugin-transform-react-pure-annotations, babel-plugin-transform-regenerator, babel-plugin-transform-reserved-words, babel-plugin-transform-runtime, babel-plugin-transform-shorthand-properties, babel-plugin-transform-spread, babel-plugin-transform-sticky-regex, babel-plugin-transform-strict-mode, babel-plugin-transform-template-literals, babel-plugin-transform-typeof-symbol, babel-plugin-transform-typescript, babel-plugin-transform-unicode-escapes, babel-plugin-transform-unicode-property-regex, babel-plugin-transform-unicode-regex, babel-plugin-transform-unicode-sets-regex, babel-preset-env, babel-preset-flow, babel-preset-react, babel-preset-typescript
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assertThisInitialized more often (@liuxingbaoyu)babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-object-rest-spread, babel-traverse
babel-core, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-proposal-function-bind, babel-plugin-transform-class-properties, babel-plugin-transform-classes, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-function-name, babel-plugin-transform-modules-systemjs, babel-plugin-transform-parameters, babel-plugin-transform-private-property-in-object, babel-plugin-transform-react-jsx, babel-plugin-transform-runtime, babel-plugin-transform-spread, babel-plugin-transform-typescript, babel-preset-env
Readme
Compile do expressions to ES5
See our website @babel/plugin-proposal-do-expressions for more information.
Using npm:
npm install --save-dev @babel/plugin-proposal-do-expressions
or using yarn:
yarn add @babel/plugin-proposal-do-expressions --dev
FAQs
Compile do expressions to ES5
The npm package @babel/plugin-proposal-do-expressions receives a total of 129,254 weekly downloads. As such, @babel/plugin-proposal-do-expressions popularity was classified as popular.
We found that @babel/plugin-proposal-do-expressions demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
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