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I have de following code:

const selector = (definitions, query = {}) => {
  const select = {};

  Object.keys(definitions).forEach((key) => {
    if (typeof query[key] !== 'undefined') {
      if (definitions[key].validation(query[key])) {
        if (typeof definitions[key].convert !== 'undefined') {
          select[key] = definitions[key].convert(query[key], key);
        } else {
          select[key] = query[key];
        }
      } else if (typeof definitions[key].default !== 'undefined') {
        select[key] = definitions[key].default;
      }
    } else if (typeof definitions[key].default !== 'undefined') {
      select[key] = definitions[key].default;
    }
  });

  return select;
};

This typescript is report me that a need to type correcty definitions and query but i really don't know how.

Error Message. Element implicitly has an 'any' type because type '{}' has no index signature.

How can I do it?

Case of usage: https://jsbin.com/gatojir/edit?js,console

I have of following function:

const selector = (definitions, query = {}) => {
  const select = {};

  Object.keys(definitions).forEach((key) => {
    if (typeof query[key] !== 'undefined') {
      if (definitions[key].validation(query[key])) {
        if (typeof definitions[key].convert !== 'undefined') {
          select[key] = definitions[key].convert(query[key], key);
        } else {
          select[key] = query[key];
        }
      } else if (typeof definitions[key].default !== 'undefined') {
        select[key] = definitions[key].default;
      }
    } else if (typeof definitions[key].default !== 'undefined') {
      select[key] = definitions[key].default;
    }
  });

  return select;
};

This typescript is report me that a need to type correcty definitions and query but i really don't know how.

Error Message. Element implicitly has an 'any' type because type '{}' has no index signature.

How can I do it?

Usage:

const config = {
  name: {
    validation: val => val.length >= 3
  },
  page: {
    validation: val => Number.isInteger(parseInt(val, 10)),
    default: 1,
  },
  limit: {
    default: 10,
  }
}

const myQuery = {
  name: 'da',
  page: 'no-unber',
  another: '1',
}
select(config, myQuery)

Test

const expected = JSON.stringify({
  page: 1,
  limit: 10,
})
const output = JSON.stringify(selector(config, myQuery))

if (expected !== output) {
  throw new Error(`The output is wrong.\nExpected: ${expected}\nOutput: ${output}`)
}

Case of usage: https://jsbin.com/gatojir/edit?js,console

Note: validation is required, but convert, and default are optional parameters.

I have de following code:

const selector = (definitions, query = {}) => {
  const select = {};

  Object.keys(definitions).forEach((key) => {
    if (typeof query[key] !== 'undefined') {
      if (definitions[key].validation(query[key])) {
        if (typeof definitions[key].convert !== 'undefined') {
          select[key] = definitions[key].convert(query[key], key);
        } else {
          select[key] = query[key];
        }
      } else if (typeof definitions[key].default !== 'undefined') {
        select[key] = definitions[key].default;
      }
    } else if (typeof definitions[key].default !== 'undefined') {
      select[key] = definitions[key].default;
    }
  });

  return select;
};

This typescript is report me that a need to type correcty definitions and query but i really don't know how.

Error Message. Element implicitly has an 'any' type because type '{}' has no index signature.

How can I do it?

I have de following code:

const selector = (definitions, query = {}) => {
  const select = {};

  Object.keys(definitions).forEach((key) => {
    if (typeof query[key] !== 'undefined') {
      if (definitions[key].validation(query[key])) {
        if (typeof definitions[key].convert !== 'undefined') {
          select[key] = definitions[key].convert(query[key], key);
        } else {
          select[key] = query[key];
        }
      } else if (typeof definitions[key].default !== 'undefined') {
        select[key] = definitions[key].default;
      }
    } else if (typeof definitions[key].default !== 'undefined') {
      select[key] = definitions[key].default;
    }
  });

  return select;
};

This typescript is report me that a need to type correcty definitions and query but i really don't know how.

Error Message. Element implicitly has an 'any' type because type '{}' has no index signature.

How can I do it?

Case of usage: https://jsbin.com/gatojir/edit?js,console