eslint/no-self-compare Pedantic ​
What it does ​
Disallow comparisons where both sides are exactly the same
Why is this bad? ​
Comparing a variable against itself is usually an error, either a typo or refactoring error. It is confusing to the reader and may potentially introduce a runtime error.
Example ​
Examples of incorrect code for this rule:
javascript
var x = 10;
if (x === x) {
x = 20;
}