Dentro del apartado de Typescript


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  • #27025
    Arkaitz Garmendia

    A la hora de crar el fichero nodemon.json, y mas en concreto a la hora de escribir npx nodemon, me da erro diciendo que “ts-node” no se reconoce como comando interno, externo, programa o archivo por este ejecutable.

    ¿A que es debido?

    Marcos Rodriguez

    Buenas, me pasó lo mismo y lo solucioné ejecutando el siguiente comando:

    npm install -g ts-node

    Un saludo.

    Arkaitz Garmendia

    Hola Marcos,
    Gracias, no se me había ocurrido. La verdad que durante este video también tuve que hacer alguna otra instalaciom que Jviejo no hacía en la explicación.
    Lo intentaré esta tarde.

    Jose Viejo

    Lo he vuelto a repasar y me funciona sin tener que hacer npm install -g ts-node.
    Tampoco tengo instalado el typescript
    Mi package.json es (no tiene paquetes instalados)
    “name”: “borrame-ts”,
    “version”: “1.0.0”,
    “main”: “index.js”,
    “license”: “MIT”
    mi nodemon.json es. Se hace referencia a ts-node y entiendo que al ejecutar nodemon con npx lo use en el exe
    “watch”: [“src”],
    “exec”:”ts-node ./src/index.ts”
    el tscconfig.json generado con npx tsc –init
    “compilerOptions”: {
    /* Visit to read more about this file */

    /* Projects */
    // “incremental”: true, /* Enable incremental compilation */
    // “composite”: true, /* Enable constraints that allow a TypeScript project to be used with project references. */
    // “tsBuildInfoFile”: “./”, /* Specify the folder for .tsbuildinfo incremental compilation files. */
    // “disableSourceOfProjectReferenceRedirect”: true, /* Disable preferring source files instead of declaration files when referencing composite projects */
    // “disableSolutionSearching”: true, /* Opt a project out of multi-project reference checking when editing. */
    // “disableReferencedProjectLoad”: true, /* Reduce the number of projects loaded automatically by TypeScript. */

    /* Language and Environment */
    “target”: “es2016”, /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
    // “lib”: [], /* Specify a set of bundled library declaration files that describe the target runtime environment. */
    // “jsx”: “preserve”, /* Specify what JSX code is generated. */
    // “experimentalDecorators”: true, /* Enable experimental support for TC39 stage 2 draft decorators. */
    // “emitDecoratorMetadata”: true, /* Emit design-type metadata for decorated declarations in source files. */
    // “jsxFactory”: “”, /* Specify the JSX factory function used when targeting React JSX emit, e.g. ‘React.createElement’ or ‘h’ */
    // “jsxFragmentFactory”: “”, /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. ‘React.Fragment’ or ‘Fragment’. */
    // “jsxImportSource”: “”, /* Specify module specifier used to import the JSX factory functions when using jsx: react-jsx*.` */
    // “reactNamespace”: “”, /* Specify the object invoked for createElement. This only applies when targeting react JSX emit. */
    // “noLib”: true, /* Disable including any library files, including the default lib.d.ts. */
    // “useDefineForClassFields”: true, /* Emit ECMAScript-standard-compliant class fields. */

    /* Modules */
    “module”: “commonjs”, /* Specify what module code is generated. */
    // “rootDir”: “./”, /* Specify the root folder within your source files. */
    // “moduleResolution”: “node”, /* Specify how TypeScript looks up a file from a given module specifier. */
    // “baseUrl”: “./”, /* Specify the base directory to resolve non-relative module names. */
    // “paths”: {}, /* Specify a set of entries that re-map imports to additional lookup locations. */
    // “rootDirs”: [], /* Allow multiple folders to be treated as one when resolving modules. */
    // “typeRoots”: [], /* Specify multiple folders that act like ./node_modules/@types. */
    // “types”: [], /* Specify type package names to be included without being referenced in a source file. */
    // “allowUmdGlobalAccess”: true, /* Allow accessing UMD globals from modules. */
    // “resolveJsonModule”: true, /* Enable importing .json files */
    // “noResolve”: true, /* Disallow imports, requires or <reference>s from expanding the number of files TypeScript should add to a project. */

    /* JavaScript Support */
    // “allowJs”: true, /* Allow JavaScript files to be a part of your program. Use the checkJS option to get errors from these files. */
    // “checkJs”: true, /* Enable error reporting in type-checked JavaScript files. */
    // “maxNodeModuleJsDepth”: 1, /* Specify the maximum folder depth used for checking JavaScript files from node_modules. Only applicable with allowJs. */

    /* Emit */
    // “declaration”: true, /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
    // “declarationMap”: true, /* Create sourcemaps for d.ts files. */
    // “emitDeclarationOnly”: true, /* Only output d.ts files and not JavaScript files. */
    // “sourceMap”: true, /* Create source map files for emitted JavaScript files. */
    // “outFile”: “./”, /* Specify a file that bundles all outputs into one JavaScript file. If declaration is true, also designates a file that bundles all .d.ts output. */
    “outDir”: “dist”, /* Specify an output folder for all emitted files. */
    // “removeComments”: true, /* Disable emitting comments. */
    // “noEmit”: true, /* Disable emitting files from a compilation. */
    // “importHelpers”: true, /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
    // “importsNotUsedAsValues”: “remove”, /* Specify emit/checking behavior for imports that are only used for types */
    // “downlevelIteration”: true, /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
    // “sourceRoot”: “”, /* Specify the root path for debuggers to find the reference source code. */
    // “mapRoot”: “”, /* Specify the location where debugger should locate map files instead of generated locations. */
    // “inlineSourceMap”: true, /* Include sourcemap files inside the emitted JavaScript. */
    // “inlineSources”: true, /* Include source code in the sourcemaps inside the emitted JavaScript. */
    // “emitBOM”: true, /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
    // “newLine”: “crlf”, /* Set the newline character for emitting files. */
    // “stripInternal”: true, /* Disable emitting declarations that have @internal in their JSDoc comments. */
    // “noEmitHelpers”: true, /* Disable generating custom helper functions like __extends in compiled output. */
    // “noEmitOnError”: true, /* Disable emitting files if any type checking errors are reported. */
    // “preserveConstEnums”: true, /* Disable erasing const enum declarations in generated code. */
    // “declarationDir”: “./”, /* Specify the output directory for generated declaration files. */
    // “preserveValueImports”: true, /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */

    /* Interop Constraints */
    // “isolatedModules”: true, /* Ensure that each file can be safely transpiled without relying on other imports. */
    // “allowSyntheticDefaultImports”: true, /* Allow ‘import x from y’ when a module doesn’t have a default export. */
    “esModuleInterop”: true, /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables allowSyntheticDefaultImports for type compatibility. */
    // “preserveSymlinks”: true, /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
    “forceConsistentCasingInFileNames”: true, /* Ensure that casing is correct in imports. */

    /* Type Checking */
    “strict”: true, /* Enable all strict type-checking options. */
    // “noImplicitAny”: true, /* Enable error reporting for expressions and declarations with an implied any type.. */
    // “strictNullChecks”: true, /* When type checking, take into account null and undefined. */
    // “strictFunctionTypes”: true, /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
    // “strictBindCallApply”: true, /* Check that the arguments for bind, call, and apply methods match the original function. */
    // “strictPropertyInitialization”: true, /* Check for class properties that are declared but not set in the constructor. */
    // “noImplicitThis”: true, /* Enable error reporting when this is given the type any. */
    // “useUnknownInCatchVariables”: true, /* Type catch clause variables as ‘unknown’ instead of ‘any’. */
    // “alwaysStrict”: true, /* Ensure ‘use strict’ is always emitted. */
    // “noUnusedLocals”: true, /* Enable error reporting when a local variables aren’t read. */
    // “noUnusedParameters”: true, /* Raise an error when a function parameter isn’t read */
    // “exactOptionalPropertyTypes”: true, /* Interpret optional property types as written, rather than adding ‘undefined’. */
    // “noImplicitReturns”: true, /* Enable error reporting for codepaths that do not explicitly return in a function. */
    // “noFallthroughCasesInSwitch”: true, /* Enable error reporting for fallthrough cases in switch statements. */
    // “noUncheckedIndexedAccess”: true, /* Include ‘undefined’ in index signature results */
    // “noImplicitOverride”: true, /* Ensure overriding members in derived classes are marked with an override modifier. */
    // “noPropertyAccessFromIndexSignature”: true, /* Enforces using indexed accessors for keys declared using an indexed type */
    // “allowUnusedLabels”: true, /* Disable error reporting for unused labels. */
    // “allowUnreachableCode”: true, /* Disable error reporting for unreachable code. */

    /* Completeness */
    // “skipDefaultLibCheck”: true, /* Skip type checking .d.ts files that are included with TypeScript. */
    “skipLibCheck”: true /* Skip type checking all .d.ts files. */

    Arkaitz Garmendia

    Hola Jose,
    Ante todo gracias por tu respuesta.
    No se cual será la razón, pero ayer lo intente varias veces y siempre me ponía el mismo error (no me reconocía el ts-node).
    Hpy mismo lo volvere a comprobar.


    Maria Carbajal


    Yo también tuve que instalar en el command de node tanto typescript y ts-node con npm install para que funcionara.

    Pablo Sanchez

    solucionado con npm install -g ts-node gracias chicos!

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