Question

62

Use javascript to return true if a string contains an exact match

rated 0 times [ 69] [ 7] / answers: 1 / hits: 5950 / 10 Years ago, wed, september 10, 2014, 12:00:00

I've been using the .indexOf('') > -1 in order to check whether there's a match in a string. The problem that I'm having is that when I'm performing the match on multiple strings, I get a match on the string for both EIFT and EI (since EIFT contains EI), and so the function returns true for both sentences. What I need is a way for this to only return true for function eIft if the string is EIFT, but not for EI.

My current code is as follows, and I've been trying to think of ways around this but haven't had any success yet.

function eI(mystring){

    return mystring.indexOf(EI) > -1

}



function eIft(mystring){

    return mystring.indexOf(EIFT) > -1

}

Thanks!

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answered 10 Years ago ammonjesseg · Accepted Answer

You can use ===; that will do an exact match of strings. Use indexOf only if you're checking whether the string contains another string.

function eI (mystring) {

    return mystring === EI;

}



function eIFt(mystring) {

    return mystring === EIFT;

}