If you thought grep was powerful, wait until you get a hold of ast-grep, which takes it to a whole new level.

- a^b 显示出bit format里面有不同binary code的数位. Assume the integer is 32 bit. XOR a and b, shift by 1 bit everytime -> want to check the XORed value at index 0 : just & 1 will do. Count the above calculated ...

The programming language that knows why. Trace is a compiled, statically-typed, general-purpose programming language built around one radical idea: tracelity is a first-class feature.