Simple JavaScript Regex Question About Optional String

What changes do I have to make to modify this to match testcreditcard. and creditcard.
if (currHost.match(/(accountopening\.|creditcard\.|web\.oflows\.us|blog\.)/i)) { }

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I thought it should it be something like the below but that seems to allow anything infront of creditcard :
if (currHost.match(/(accountopening\.|(test)?creditcard\.|web\.oflows\.us|blog\.)/i)) { }

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Jan LouwerensSoftware EngineerCommented:
Maybe you just need to match the beginning of the input. (it probably also accepts anything before "accountopening" and "web" also.)

if (currHost.match(/^(accountopening\.|(test)?creditcard\.|web\.oflows\.us|blog\.)/i)) { }

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Another approach is to use test
match is more used to get part of the string you're checking (but match is almost working of course)

if ( /(test)?creditcard\.|web\.oflows\.us|blog\./i.test(currHost) )

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you may use test
To let your code cool and readable :
var hostIsAllowed = /(test)?creditcard\.|web\.oflows\.us|blog\./i.test(currHost);
if (hostIsAllowed )

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Regular Expressions

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