how to fix error for "Expected an assignment or function call and instead saw an expression"

Asked Sep 26 '18 at 15:11

Active Sep 26 '18 at 15:15

Viewed 2,133 times

I have couple line of code to use chai library but I get this error Expected an assignment or function call and instead saw an expression on expect(validTime(t)).to.be.true; anyone know why or how to fix it?

function validTime(timestamp) {

  const utcnow = moment.utc().unix();
  if (utcnow > timestamp) {
    return true;
  }
    return false;
}

describe('test time function', () => {
  it('given time should work', () => {
    const t = moment.utc().unix();
    expect(validTime(t)).to.be.true;
  });
});

asked Sep 26 '18 at 15:11

jacobcan118

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Eslint doesn't know that `.to.be.true` are getters with side effects. It just sees a property access that doesn't make sense. Disable the rule in your configuration for the test suite if you want to write tests using this style – Bergi Sep 26 '18 at 15:16
sorry..how should I disable it? – jacobcan118 Sep 26 '18 at 15:51
1

https://eslint.org/docs/user-guide/configuring! – Bergi Sep 26 '18 at 16:22
thank you. find a reference from another post, it works for me https://stackoverflow.com/questions/37558795/nice-way-to-get-rid-of-no-unused-expressions-linter-error-with-chai/43525402 – jacobcan118 Sep 26 '18 at 16:59
will delete this post for duplicated. – jacobcan118 Sep 26 '18 at 16:59
1

You don't need to delete it, I can just close it :-) – Bergi Sep 26 '18 at 17:03

how to fix error for "Expected an assignment or function call and instead saw an expression"

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