1 | # karma-typescript-preprocessor
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2 |
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3 | > Preprocessor to compile TypeScript on the fly.
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4 |
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5 | [![Build Status](https://travis-ci.org/sergeyt/karma-typescript-preprocessor.svg?branch=master)](https://travis-ci.org/sergeyt/karma-typescript-preprocessor)
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6 | [![Deps Status](https://david-dm.org/sergeyt/karma-typescript-preprocessor.png)](https://david-dm.org/sergeyt/karma-typescript-preprocessor)
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7 | [![devDependency Status](https://david-dm.org/sergeyt/karma-typescript-preprocessor/dev-status.svg)](https://david-dm.org/sergeyt/karma-typescript-preprocessor#info=devDependencies)
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8 | [![npm](https://img.shields.io/npm/dt/karma-typescript-preprocessor.svg?maxAge=2592000)](https://www.npmjs.com/package/karma-typescript-preprocessor)
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9 |
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10 | ## Installation
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11 |
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12 | ```bash
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13 | npm install karma-typescript-preprocessor --save-dev
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14 | ```
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15 |
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16 | ## Configuration
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17 |
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18 | The code below shows the sample configuration of the preprocessor.
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19 | ```js
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20 | // karma.conf.js
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21 | module.exports = function(config) {
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22 | config.set({
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23 | preprocessors: {
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24 | '**/*.ts': ['typescript']
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25 | },
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26 |
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27 | typescriptPreprocessor: {
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28 | // options passed to the typescript compiler
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29 | options: {
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30 | sourceMap: false, // (optional) Generates corresponding .map file.
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31 | target: 'ES5', // (optional) Specify ECMAScript target version: 'ES3' (default), or 'ES5'
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32 | module: 'amd', // (optional) Specify module code generation: 'commonjs' or 'amd'
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33 | noImplicitAny: true, // (optional) Warn on expressions and declarations with an implied 'any' type.
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34 | noResolve: true, // (optional) Skip resolution and preprocessing.
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35 | removeComments: true, // (optional) Do not emit comments to output.
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36 | concatenateOutput: false // (optional) Concatenate and emit output to single file. By default true if module option is omited, otherwise false.
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37 | },
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38 | // transforming the filenames
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39 | transformPath: function(path) {
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40 | return path.replace(/\.ts$/, '.js');
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41 | }
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42 | }
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43 | });
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44 | };
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45 | ```
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46 |
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47 | If you set the `sourceMap` option to `true` then the generated source map will be inlined as a data-uri.
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48 |
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49 | All TypeScript compiler options are defined [here](https://github.com/Microsoft/TypeScript/blob/0f67f4b6f1589756906782f1ac02e6931e1cff13/lib/typescript.d.ts#L1445-L1500).
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50 |
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51 | ----
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52 |
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53 | For more information on Karma see the [homepage](http://karma-runner.github.com).
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54 |
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