2014/10/16 上午 12:02:13

jquery Programming Glossary: bitwise

Understanding bitwise operations in javascript

http://stackoverflow.com/questions/1003879/understanding-bitwise-operations-in-javascript

bitwise operations in javascript I am currently storing data inside an XML doc as binary 20 digits long each representing a boolean.. This takes place a few times as part of a HUGE loop that has run sort of slow. Someone told me that I should use bitwise operators to process this and it would run faster. My question is either Can someone offer me an example of how I could.. does anyone know of a good simple maybe even dumbed down version tutorial or something that could help me grasp these bitwise operator concepts javascript jquery binary compare bitwise share improve this question Assuming you have no more than..

What does tilde (~) preceding jQuery object do?

http://stackoverflow.com/questions/9316612/what-does-tilde-preceding-jquery-object-do

javascript jquery tilde share improve this question The tilde operator isn't actually part of jQuery at all it's a bitwise NOT operator in Javascript itself. http www.joezimjs.com javascript great mystery of the tilde You are getting strange numbers.. javascript great mystery of the tilde You are getting strange numbers in your experiments because you are performing a bitwise logical operation on an integer which for all I know may be stored as two's complement or something like that... Edit Here's..