{"id":19588935,"url":"https://github.com/danielmschmidt/babel-generate-guard-clauses","last_synced_at":"2025-04-27T12:32:01.628Z","repository":{"id":23634454,"uuid":"99483379","full_name":"DanielMSchmidt/babel-generate-guard-clauses","owner":"DanielMSchmidt","description":"A helper to generate different guard 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Babel-Generate-Guard-Clause ![travis status](https://travis-ci.org/DanielMSchmidt/babel-generate-guard-clauses.svg?branch=master) [![Coverage Status](https://coveralls.io/repos/github/DanielMSchmidt/babel-generate-guard-clauses/badge.svg?branch=master)](https://coveralls.io/github/DanielMSchmidt/babel-generate-guard-clauses?branch=master)\n\nA helper to generate different guard clauses.\n\n## Exports\n\n### `generateTypeCheck(typeAssertion, options)({ name: argumentName })`\n\n#### `generateTypeCheck(\"number\")({ name: argumentName })`\n\n```js\nconst typeCheckAst = genertateTypeCheck(\"string\")({ name: \"ponies\" });\n```\n\nGenerated Code:\n\n```js\nif (typeof ponies !== \"string\") {\n  throw new Error(\n    \"ponies should be a string, but got \" + ponies + \"(\" + typeof ponies + \")\"\n  );\n}\n```\n\n#### `generateTypeCheck(\"number\", { selector: \"selector\" })({ name: argumentName })`\n\n```js\nconst typeCheckAst = generateTypeCheck(\"number\", { selector: \"x\" })({\n  name: \"point\"\n});\n```\n\nGenerated Code:\n\n```js\nif (typeof point.x !== \"number\") {\n  throw new Error(\n    \"point.x should be a number, but got \" +\n      point.x +\n      \"(\" +\n      typeof point.x +\n      \")\"\n  );\n}\n```\n\n### `generateIsOneOfCheck`\n\n#### `generateIsOneOfCheck(optionArray)({ name: \"argName\" })`\n\n```js\nconst typeCheckAst = generateIsOneOfCheck([\"option1\", \"option2\"])({\n  name: \"argName\"\n});\n```\n\nGenerated Code:\n\n```js\nif (![\"option1\", \"option2\"].some(x =\u003e x === argName)) {\n  return new Error(\n    \"argName should be one of ['option1', 'option2'], but got \" + argName\n  );\n}\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdanielmschmidt%2Fbabel-generate-guard-clauses","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fdanielmschmidt%2Fbabel-generate-guard-clauses","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdanielmschmidt%2Fbabel-generate-guard-clauses/lists"}