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ES6 - RegExp search()
This method returns the index where the match was found in the string. If no match is found, it returns -1.
Syntax
str.replace(regexp|substr, newSubStr|function)
Parameter Details
Regexp − A regular expression object.
Substr − String to be replaced.
newSubStr − The replacement string.
function − the function to create a new string.
Return Value
Returns the index at which the match was found in the string.
Example
var str = 'Welcome to ES6.We are learning ES6'; var re = new RegExp(/We/); var found = str.search(re); console.log(found);
Output
0
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