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Find all JavaScript variables used in pug template

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Find all JavaScript variables used in pug template.

Usage

$ npm install --save pug-uses-variables
const { findVariablesInTemplate } = require('pug-uses-variables')

const pugTemplate = `

  ReactComponent(property=object[item])
    = content

    if condition === matcher
      p Truthy

`.trimRight()

const variables = findVariablesInTemplate(pugTemplate)
// `variables` is equal:
[{
  value: 'ReactComponent',
  loc: {
    start: { line: 3,  column: 2 },
    end:   { line: 3,  column: 14 }
  }
}, {
  value: 'object',
  loc: {
    start: { line: 3,  column: 24 },
    end:   { line: 3,  column: 30 }
  }
}, {
  value: 'item',
  loc: {
    start: { line: 3,  column: 31 },
    end:   { line: 3,  column: 35 }
  }
}, {
  value: 'content',
  loc: {
    start: { line: 4,  column: 4 },
    end:   { line: 4,  column: 11 }
  }
}, {
  value: 'condition',
  loc: {
    start: { line: 6,  column: 5 },
    end:   { line: 6,  column: 14 }
  }
}, {
  value: 'condition',
  loc: {
    start: { line: 6,  column: 19 },
    end:   { line: 6,  column: 26 }
  }
}]

Important: templates should be right-trimmed. Usually it means that you have to execute .trimRight on your template-string as in the example above.

Get variable names only

const variableNames = variables.map(variable => variable.value)
// > ['ReactComponent', 'object', 'item', 'content', 'condition', 'matcher']

Value

This plugin helps us to integrate babel-plugin-transform-react-pug and eslint.

Development

  • yarn test
  • yarn lint

License

MIT

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Find all JavaScript variables used in pug template

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