jquery - Get item index when using filter in javascript -

i'm using code items match particular keyword.

var match_data = function(search_str, items) {     var reg = new regexp(search_str.split('').join('\\w*').replace(/\w/, ""), 'i');     return items.filter(function(item_data) {         if (item_data.match(reg)) {             return item_data;         }     }); }; 

is there way can index of matched item ?

also keep getting warning when search string comtains \ anywhere in it:

uncaught syntaxerror: invalid regular expression: /iw*m\w*\/: \ @ end of pattern(…)

can guys please me solve error well.

thanks in advance.

you use array , index callback api of array#filter.

var match_data = function(search_str, items) {         var reg = new regexp(search_str.split('').join('\\w*').replace(/\w/, ""), 'i'),             indices = [];          return {             result: items.filter(function(item_data, index) {                 if (item_data.match(reg)) {                     indices.push(index);                     return true;                 }             }),             indices: indices         };     };