V7015. Suspicious formatting of assignment and unary operators.

The analyzer has detected suspicious formatting of the assignment operator and one of the unary operators: !, -, or +. It is most likely a mistake to use these operators—developers probably meant to use one of the following instead: !=, -=, or +=.

The analyzer flags the use of the assignment operator together with logical negation in the condition as suspicious:

let a = .... ;
let b = .... ;
....
if (a =! b) { // <=
  ....
}

Most likely, the code should include a check that the a variable is not equal to b. If so, the correct code should look like this:

if (a != b) {
  ....
}

If the goal is to perform an assignment rather than a comparison, it is preferable to fix the formatting to enhance the code's readability:

if (a = !b)
  ....

A similar error can involve the + and - unary operators. For them, normal statements are considered suspicious, not conditions. Suspicious code may look like this:

let size = ....;
let delta ....;
....
size =- delta;  // <=

The code may be correct, but it likely contains a typo, and the developers probably intended to use the -= operator:

size -= delta;

This diagnostic rule is classified as:

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