Comparing to null needs a type-checking operator (=== or !==), to avoid incorrect results when the value is undefined.
Apply with the Grit CLI
grit apply no_eq_null
$val == null => $val === null
BEFORE
if (val == null) {
done();
}AFTER
if (val === null) {
done();
}$val != null => $val !== null
BEFORE
if (val != null) {
done();
}AFTER
if (val !== null) {
done();
}$val != null => $val !== null into while
BEFORE
while (val != null) {
did();
}AFTER
while (val !== null) {
did();
}Do not change $val === null
JAVASCRIPT
if (val === null) {
done();
}Do not change $val !== null
while (val !== null) {
doSomething();
}