Useful for code that expects data of a certain length, but lowercases it in between checking and using.
const c = String.fromCodePoint(i)
const c_lower = c.toLowerCase()
if (c_lower.length != c.length){
log(i)
}const c = String.fromCodePoint(i)
const c_lower = c.toLowerCase()
if (c_lower.length != c.length){
alert(i)
}