Blog Style test

 /** var expression =/Pattern/flags * Regular expression can have one or more flags to flag the expression's behavior * Regular expressions Support 3 flags: * g: Indicates full        mode, that is, the pattern will be applied to all strings instead of stopping immediately when the first match is found.        * I: Indicates ignoring case * M: indicates that any metacharacters used in multiple lines * * mode must be escaped. * */        /*================================= The following are regular expression literal forms =============================*/        varPATTERN1 =/at/g;//match all ' at '        varpattern2 =/[bc]at/i;//match the first ' bat ' or ' cat ', ignoring case        varPattern3 =/\[bc\]at/i;//Match [Bc]at        varPattern4 =/.at/gi;//matches all combinations of characters ending with ' at ', not case-sensitive.        varPattern5 =/\.at/gi;//matches all. At, not case sensitive.        /*================================ The following is the form of the RegExp constructor ===============================*/        /** * The RegExp constructor has 2 parameters: the string pattern to match, and the other optional flag string * Expressions that can be defined in literal form can be defined by constructors. *         */        varREG1 =NewRegExp ("[Bc]at", "I"); varReg =NULL; vari = 0;  for(; i < ten; i++) {reg=/cat/G; Console.log (Reg.test ("Catastrophe")); }        varRe =NULL;  for(i = 0; i < i++;){        }

Blog Style test