bitflags - How to calculate Bit Flag in javascript? - Stack Overflow

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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!

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!

• javascript
• bitflags

Share Improve this question Follow asked Jan 31, 2010 at 16:49 Carter ColeCarter Cole 92499 silver badges1616 bronze badges

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2 Answers 2

Sorted by: Reset to default 6

Just like in C:

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

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

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