javascript - testing rewriting a simple loop with an immediate function -

i'm not sure why i'm getting error on following snippet (adapted javascript closure inside loops – simple practical example):

var funcs = {}; (var = 0; < 3; i++) {          // let's create 3 functions     funcs[i] = (function(n) {            // , store them in funcs         console.log("my value: " + n); // each should log value.     })(i); } (var j = 0; j < 3; j++) {     funcs[j]();                        // , let's run each 1 see } 

it seems should run ok; know don't get.

here errror get:

thx help

you need return function, rather result of function. try:

funcs[i] = (function(n) {   return function() {      console.log("my value: " + n);    } })(i); 

example:

> var funcs = {}; (var = 0; < 3; i++) {   funcs[i] = (function(n) {      return function() {console.log("my value: " + n);}    })(i); } (var j = 0; j < 3; j++) {   funcs[j]();                 } value: 0 value: 1 value: 2