3 ms·

Here's a JavaScript example, based on what was in the article. var b = {c:0}; b.valueOf = function() { this.c++; return this.c; } b == 1 && b == 2

Here's a JavaScript example, based on what was in the article. var b = {c:0}; b.valueOf = function() { this.c++; return this.c; } b == 1 && b == 2 > true

mfonda 13y ago
That only works for consecutive integers, not any arbitrary values.