## [2.3.0](https://github.com/power-assert-js/espower-source/releases/tag/v2.3.0) (2018-06-12)
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#### Features
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* [Support ES2018 syntax](https://github.com/power-assert-js/espower-source/pull/20)
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## [2.2.0](https://github.com/power-assert-js/espower-source/releases/tag/v2.2.0) (2017-05-05)
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#### Features
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* [add `ecmaVersion` and `sourceType` to options](https://github.com/power-assert-js/espower-source/pull/17)
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* [add `sourceRoot` property to generated SourceMap](https://github.com/power-assert-js/espower-source/pull/18)
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## [2.1.0](https://github.com/power-assert-js/espower-source/releases/tag/v2.1.0) (2017-04-09)
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#### Features
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* [support file SourceMap](https://github.com/power-assert-js/espower-source/pull/14) by [@shepherdwind](https://github.com/shepherdwind)
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### [2.0.1](https://github.com/power-assert-js/espower-source/releases/tag/v2.0.1) (2017-02-13)
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#### Bug Fixes
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* [fix: ecmaVersion 7 => 2017 to support async await](https://github.com/power-assert-js/espower-source/pull/13) by [@dead-horse](https://github.com/dead-horse)
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## [2.0.0](https://github.com/power-assert-js/espower-source/releases/tag/v2.0.0) (2016-11-12)
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#### Features
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* [Integrate `empower-assert` to enable transparent assertion enhancement](https://github.com/power-assert-js/espower-source/pull/11)
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* Embed value capturing helper into transpiled code (by upgrading espower to 2.0.0) ([78a57687](https://github.com/power-assert-js/espower-source/commit/78a57687b142ae99a0eae3566042a1467c016b1e))
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#### Breaking Changes
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* [Drop support for prebuilt bundle, bower, and Node v0.10](https://github.com/power-assert-js/espower-source/pull/12)
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We stopped providing prebuilt bundle for browsers. Please build your own by using browserify, webpack and so on.
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We also dropped bower support. Please use npm instead.
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## [1.2.0](https://github.com/power-assert-js/espower-source/releases/tag/v1.2.0) (2016-10-25)
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#### Features
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* [show SyntaxError detail](https://github.com/power-assert-js/espower-source/pull/10) (by [@shibukawa](https://github.com/shibukawa))
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## [1.1.0](https://github.com/power-assert-js/espower-source/releases/tag/v1.1.0) (2016-01-22)
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#### Bug Fixes
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* relax too strict originalCode checking ([458ef9f1](https://github.com/power-assert-js/espower-source/commit/458ef9f1e916e3496945f046bafd36497c08fe10))
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#### Features
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* [add async-await support](https://github.com/power-assert-js/espower-source/pull/8) (by [@jamestalmage](https://github.com/jamestalmage))
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## [1.0.0](https://github.com/power-assert-js/espower-source/releases/tag/v1.0.0) (2015-08-08)
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#### Bug Fixes
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* properties of outgoing SourceMap is broken when `typeof options.sourceMap` is string ([af6ba419](https://github.com/power-assert-js/espower-source/commit/af6ba419fb01ee79a4fefe4c3acc23d94bd7c1b3))
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* preserve sourceRoot if incoming sourceMap contains sourceRoot ([c95e3252](https://github.com/power-assert-js/espower-source/commit/c95e32520335556b41dff73c692b5a22dc105950))
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#### Features
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* transfer to power-assert-js organization ([ff22316e](https://github.com/power-assert-js/espower-source/commit/ff22316eb0c45bf5ec4bb91cadc13005cfd23d30))
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* ship bundle for browsers with npm module ([36b4ed84](https://github.com/power-assert-js/espower-source/commit/36b4ed845048edc7749d6c0f3e61db29dfe74d21))
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* [sourceRoot option](https://github.com/power-assert-js/espower-source/pull/7)
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* throw EspowerError when `originalCode` is not specified ([04d86abb](https://github.com/power-assert-js/espower-source/commit/04d86abb40af1499fde55a419346666d3b90d35a))
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* clarify parameter prerequisite and its outcome ([95ed841b](https://github.com/power-assert-js/espower-source/commit/95ed841bdde5bf422fa63b0680f75d4ac82b6b74))
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## [0.10.0](https://github.com/power-assert-js/espower-source/releases/tag/v0.10.0) (2014-11-11)
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* **espower-source:**
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* update espower to 0.10.0 ([cd05911e](https://github.com/power-assert-js/espower-source/commit/cd05911e9199ea079f8522348624387b92a97208))
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### 0.9.1 (2014-09-15)
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#### Features
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* **espower-source:** update espower to 0.9.1 ([8acad23d](https://github.com/power-assert-js/espower-source/commit/8acad23d1eeb613c539ed1dba09830b86e932c0f))
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## 0.9.0 (2014-08-31)
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#### Features
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* **espower-source:** backport espowerify to support multi-stage sourcemaps ([71de737c](https://github.com/power-assert-js/espower-source/commit/71de737cb16231db852a44592e896a43c447298b))
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## 0.8.0 (2014-08-12)
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#### Features
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* **espower-source:**
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* update espower to 0.8.0 ([ae15a229](https://github.com/power-assert-js/espower-source/commit/ae15a229367c65a7a590104f3fb0fc0b2a7582d0))
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* simple xtend would be better for options handling ([6bea0a92](https://github.com/power-assert-js/espower-source/commit/6bea0a9241aba71f2dcae9c285561e68d91531bb))
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#### Breaking Changes
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* update espower to 0.8.0 ([ae15a229](https://github.com/power-assert-js/espower-source/commit/ae15a229367c65a7a590104f3fb0fc0b2a7582d0))
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If you already customize instrumentation pattern using `powerAssertVariableName` and `targetMethods`, you need to migarte. To migrate, change your code from the following:
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```javascript
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var espowerSource = require('espower-source');
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var options = {
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powerAssertVariableName: 'yourAssert',
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targetMethods: {
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oneArg: [
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'okay'
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],
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twoArgs: [
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'equal',
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'customEqual'
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]
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}
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};
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var modifiedCode = espowerSource(originalCode, filepath, options);
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```
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To:
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```javascript
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var espowerSource = require('espower-source');
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var options = {
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patterns: [
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'yourAssert(value, [message])',
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'yourAssert.okay(value, [message])',
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'yourAssert.equal(actual, expected, [message])',
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'yourAssert.customEqual(actual, expected, [message])'
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]
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};
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var modifiedCode = espowerSource(originalCode, filepath, options);
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```
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