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15.7 Avoid unneeded ternary statements. eslint: no-unneeded-ternary

// badconst foo = a ? a : b;const bar = c ? true : false;const baz = c ? false : true;// goodconst foo = a || b;const bar = !!c;const baz = !c;

22.2 Strings:

// => this.reviewScore = 9;// badconst totalScore = this.reviewScore + ''; // invokes this.reviewScore.valueOf()// badconst totalScore = this.reviewScore.toString(); // isn’t guaranteed to return a string// goodconst totalScore = String(this.reviewScore);

• 22.6 Booleans:

  const age = 0;// badconst hasAge = new Boolean(age);// goodconst hasAge = Boolean(age);// bestconst hasAge = !!age;

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