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| const babel = require('@babel/core'); | |
| const reproduce = true; | |
| const res = babel.transformSync( | |
| ` | |
| const variableNeeded = true; | |
| class X { | |
| x = true; | |
| constructor() { | |
| console.log("Constructed"); | |
| } | |
| someMethod() { | |
| console.log("Some method"); | |
| } | |
| static b = true; | |
| static { | |
| this.a = true; | |
| } | |
| } | |
| const el = document.createElement('span'); | |
| el.innerText = 'Hello'; | |
| document.body.appendChild(el); | |
| `, | |
| { | |
| plugins: [['@babel/plugin-proposal-class-properties', {}]], | |
| presets: [ | |
| [ | |
| require('@babel/preset-env').default, | |
| { | |
| bugfixes: true, | |
| modules: false, | |
| targets: [ | |
| 'last 1 Chrome version', | |
| 'last 1 Firefox version', | |
| 'last 2 Edge major versions', | |
| ...(reproduce ? ['last 2 Safari major versions'] : []), | |
| ...(reproduce ? ['last 2 iOS major versions'] : []), | |
| 'Firefox ESR', | |
| ], | |
| exclude: ['transform-typeof-symbol'], | |
| }, | |
| ], | |
| ], | |
| } | |
| ); | |
| console.error(res.code); |
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