Question

How to find characters in string with regular expression (RegExp) in JavaScript

Answer 1

var s = "device WIDTH viewport";

var n = s.search(/ice/i) // i - modifier for search case-insensitive
        
document.write(n);

/*
run:

3 

*/

 

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Answer 2

var s = "device WIDTH viewport";

var n = s.search(/e/i) // i - modifier for search case-insensitive
        
document.write(n);

/*
run:

1

*/

 

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