how to create a dynamic array of functions

Question

I want to initialize a array of functions dynamically,

Example :

Transform the following code :

$filter('orderBy')(datas, 
    [
        function (obj) {
             return filterTable(obj, sortInfos.fields[0]);
        },
        function (obj) {
             return filterTable(obj, sortInfos.fields[1]);
        },
        function (obj) {
             return filterTable(obj, sortInfos.fields[2]);
        },
        function (obj) {
             return filterTable(obj, sortInfos.fields[3]);
        }
    ], 
    revert);

To :

$filter('orderBy')(datas, myArrayOfFunction, revert);

Don't repeat yourself

Johan
– Johan

2014-09-18 07:53:39 +00:00
Commented Sep 18, 2014 at 7:53 — Johan
– Johan, Commented Sep 18, 2014 at 7:53
What exactly is your question?

jfriend00
– jfriend00

2014-09-18 08:01:24 +00:00
Commented Sep 18, 2014 at 8:01 — jfriend00
– jfriend00, Commented Sep 18, 2014 at 8:01
I have edited my question, I hope that it is clear

Karim Oukara
– Karim Oukara

2014-09-18 08:12:54 +00:00
Commented Sep 18, 2014 at 8:12 — Karim Oukara
– Karim Oukara, Commented Sep 18, 2014 at 8:12

phts · Accepted Answer · 2014-09-18 08:02:46Z

1

function createMyFuntion(sortInfoIndex) {
    return function(obj) { return filterTable(obj, sortInfos.fields[sortInfoIndex]); };
}

var myArrayOfFunction = [];
for (var i = 0; i < 4; i++) {
    myArrayOfFunction.push(createMyFuntion(i))
}

$filter('orderBy')(datas, myArrayOfFunction, revert);

answered Sep 18, 2014 at 8:02

phts

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4 Comments

Karim Oukara Over a year ago

But how can I pass the "obj" to createMyFuntion ?

phts Over a year ago

But how can I pass the "obj" to createMyFuntion ? - obj is an argument of a function. So these functions should be called like this: myArrayOfFunction[1](myObj) in $filter('orderBy').

phts Over a year ago

All interfaces are still same. I have only wrapped your copy-pasted functions in array to createMyFuntion and for loop.

Karim Oukara Over a year ago

I could not do it :( ... can you write all the solution please ?

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