Javascript RegExp to match user ID pattern -

i using c# code below detect if string formatted e123456, h123456 or t123456.

regex(@"\b[eht]\d{6}")  

i trying use javascript equivalent having difficulties.

so far have, it's returning false each time when should returning true.

regexp("\b[eht]\d{6}")  

any appreciated, or link regexp formatting.

i believe issue having due fact when using regexp constructor string argument, special characters such slashes , quotation marks must escaped backslash character. also, use i flag if want allow both upper , lower case matches.

to make regexp constructor method, use:

new regexp("\\b[eht]\\d{6}", "i") 

or make regexp literal, go with:

var regexname = /\b[eht]\d{6}/i 

also, if want experiment more regex's in javascript, http://regexr.com/ wonderful site highly recommend!