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javascript Programming Glossary: xorHelp me understand this JavaScript exploit http://stackoverflow.com/questions/381171/help-me-understand-this-javascript-exploit 03D4 add edx esp 00000019 07 pop es 0000001A 67305CFF xor si 0x1 bl 0000001E 98 cwde 0000001F BBD7FFA4FE mov ebx 0xfea4ffd7.. 09E1 or ecx esp 0000008F 96 xchg eax esi 00000090 315580 xor ebp 0x80 edx Understanding this shellcode requires x86 assembly..
What do these Javascript operators do? http://stackoverflow.com/questions/4535328/what-do-these-javascript-operators-do indicated by the right operand. ^ These are bitwise and xor and or respectively. You can think of and as the counterparts.. of the bits. There is no ^^ operator but this operation is xor or exclusive or . You can think of a xor b as a or b but not..
Canvas - Fill a rectangle in all areas that are fully transparent http://stackoverflow.com/questions/7909865/canvas-fill-a-rectangle-in-all-areas-that-are-fully-transparent your ambient color and set the globalCompositeOperation to xor and xor the whole thing. ctx.fillStyle amb ctx.globalCompositeOperation.. color and set the globalCompositeOperation to xor and xor the whole thing. ctx.fillStyle amb ctx.globalCompositeOperation.. thing. ctx.fillStyle amb ctx.globalCompositeOperation 'xor' ctx.fillRect 0 0 500 500 That will leave you with the opposite..
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