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I am working on an assignment using javascript but I am stuck on a problem. When I try to join together several .replace commands i do not get the expected output. I do not use any libraries like Jquery.

var str = ('abc abc');
str = str.replace(/a/g, 'b').replace(/b/g, 'c');
alert(str);

With my code I get this output: ccc ccc. When I should get this: bcc bcc.

Can anyone see what I am doing wrong?

Best regards, a student from Norway :)

asked Oct 1, 2014 at 0:31
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  • What you should get is exactly what you get. ;-) What you want to get might be different though. :-o Commented Oct 1, 2014 at 0:45

1 Answer 1

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Like @elclarns said, switch the replace functions so you are replacing b with c first.

str = str.replace(/b/g, 'c').replace(/a/g, 'b');
answered Oct 1, 2014 at 0:35
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2 Comments

Thanks for the example! Can you explain why it is like that?
@user2926446, because code above executes left to right. second replace gets called on the result of the first replace.

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