CODEWITHSUNDEEP
javascriptjquery
RSKMR
RSKMR

Reputation: 1892

variable using for loop

I render the for loop using variable count. Please check this example

I have 5 variable like this:

var reactionWeightage5 = 30;
var reactionWeightage4 = 06;
var reactionWeightage3 = 70;
var reactionWeightage2 = 80;
var reactionWeightage1 = 10;

i need render like this

for (var i = 1; i <= 5; i++) {
    var test = reactionWeightage[i];
    etc .....
}

i am getting the following error :

"reactionWeightage is not defined"

Can anyone help for this?

Upvotes: 0

Views: 71

Answers (4)

freakish
freakish

Reputation: 56467

Instead of using five variables, use for example a dictionary/object:

var reactionWeightage = {
    5: 30,
    4: 06,
    3: 70,
    2: 80,
    1: 10
};

for (var i = 1; i <= 5; i++) {
    var test = reactionWeightage[i];
    etc .....
}

However to answer the question completely here's an example how to achieve what you want (only for academic purposes, do not use it in real code):

for (var i = 1; i <= 5; i++) {
    var test = eval('reactionWeightage'+i);
    etc .....
}

Upvotes: 1

splrs
splrs

Reputation: 2432

You need to define reactionWeightage as an array, not declare 5 separate variables. Minimally fixing what you've got already:

var reactionWeightage = new Array();
reactionWeightage[5] = 30;
reactionWeightage[4] = 06;
reactionWeightage[3] = 70;
reactionWeightage[2] = 80;
reactionWeightage[1] = 10;

Upvotes: 0

tymeJV
tymeJV

Reputation: 104775

Simplest way is to just create the array like so:

var reactionWeightage = [30, 06, 70, 80, 10];

Iterate

for (var i = 0; i < reactionWeightage.length; i++) {
     console.log(reactionWeightage[i]);
}

Upvotes: 3

ddoor
ddoor

Reputation: 5963

reactionWeight is not an array. You need to use arrays if you use the [] operator.

Try creating something like this:

var mycars = new Array();
mycars[0] = "Saab";
mycars[1] = "Volvo";
mycars[2] = "BMW";

then you can access it like this:

alert(mycars[2]); //will alert BMW

http://www.w3schools.com/js/js_obj_array.asp

Upvotes: 1

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