The use of operators pairs (`=+`

, `=-`

or `=!`

) where the reversed, single operator was meant (`+=`

,
`-=`

or `!=`

) will compile and run, but not produce the expected results.

This rule raises an issue when `=+`

, `=-`

and `=!`

are used without any space between the two operators and when
there is at least one whitespace after.

## Noncompliant Code Example

let target =-5;
let num = 3;
target =- num; // Noncompliant; target = -3. Is that really what's meant?
target =+ num; // Noncompliant; target = 3

## Compliant Solution

let target = -5;
let num = 3;
target = -num; // Compliant; intent to assign inverse value of num is clear
target += num;