Javascript _ regular expression test-string replacement

Source: Internet
Author: User

<SCRIPT type = "text/JavaScript">

VaR STR = "every man in the world! Every woman on earth! ";

VaR patt =/man/g; // global search man string;

VaR result = Str. Replace (patt, "person"); // replace man string with person;

Document. Write (result + "<br/>"); // output: every person in the world! Every woperson on Earth!

Patt =/(WO )? Man/g; // a new regular expression with zero or one Wo string;

Patt. Compile (patt); // recompile;

Result = Str. Replace (patt, "person ");

Document. Write (result); // output: every person in the world! Every person on earth!


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