CODEWITHSUNDEEP
javascriptbitflags
Carter Cole
Carter Cole

Reputation: 924

How to calculate Bit Flag in javascript?

im writing a free tool for SEO... implementing an api from seomoz and the flags look like this

URL Metric,Bit Flag
Title,1
URL,4
Subdomain,8
Root Domain,16
External Links,32
Links,2048
mozRank,16384
mozTrust,131072

these are just a few but i dont know how to calculate the proper bit flag in javascript... is it just an OR of all the integers of the flags i want to use? a small snippet to show me how to make a var that holds some of these flags would be awesome...

thanks for your help!

Upvotes: 3

Views: 3798

Answers (2)

zneak
zneak

Reputation: 138031

Just like in C:

var flags = 0;
// *snip*
flags |= MyFlag;
flags |= MyOtherFlag;
// *snip*
if ((flags & MyFlag) == MyFlag)
{
    // do stuff
}

Upvotes: 6

Shog9
Shog9

Reputation: 159590

is it just an OR of all the integers of the flags i want to use?

Yes. Title|URL|Links (etc.) would be 1|4|2048

Upvotes: 3

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