problem with function's array in javascript

Question

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Hello,

I have this code:

JavaScript

myfunction=function(params){
    $.each(params,function(key,value){
        var myfun=value["formatter"];
        document.write(value["name"] + myfun());
    })
}

JavaScript

var columns= [
        {
            name: "col1 ",
            formatter: function () { return 'a'; }
        },
        {
            name: "col2 ",
            formatter: function () { return 'b'; }
        },
        {
            name: "col3 ",
            formatter: function () { return 'c'; }
        },
    ]
myfunction(columns);

My code seem to be good, but the problem is that to each column, only the function of the first element is executed to all elements. when should be executed the function according to the element.

my result:

col1 a
col2 a
col3 a

the correct result should be this

col1 a
col2 b
col3 c

Posted 16-Apr-13 5:46am

daniel pomalaza

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Comments

Sergey Alexandrovich Kryukov 16-Apr-13 12:41pm

I see. This is trivial, but the problem is: you never show the code where you are trying to call formatter functions stored in the array. Besides, the idea is bad. Rather, you should use associated array so the string is used as a key.
—SA

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Sergey Alexandrovich Kryukov · Answer 1 · 2013-04-16T06:45:00

Please see my comment to the question. Do something like:

JavaScript

colums[0] = function () { return 'a'; }
colums[1] = function () { return 'b'; }
colums[2] = function () { return 'c'; }
//...

// the calls would look like
value = columns[someIntegerIndex]();

I hope this is just for research, and the functions are supposed to be less trivial, because if you really want to return a character by a function without parameters, you would better simply have an array of characters.

—SA

problem with function's array in javascript

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