I dont like to write:
if ( !('x' in obj) && !('y' in obj) ) {
doit()
}
I was even tempted to write it that way:
if ('x' in obj || 'y' in obj) { } else {
doit()
}
What about a !in operator to write it like this?
if ('x' !in obj && 'y' !in obj) {
doit()
}
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