CODEWITHSUNDEEP
javascript
Limna
Limna

Reputation: 403

Setting Values in a variable as Dictionary

I have a set of values for a DropDownList. My requirement is before setting on the DropDown, values need to be stored in a javascript variable using loop in the below format:

var categories = [{
                "value": 1,
                "text": "Keyboard"
            },{
                "value": 2,
                "text": "Mouse"
            },{
                "value": 3,
                "text": "Monitor"
            }];

I created a sample like below:

dataType: "json",
data: { categoryId: CategoryHdId },
success: function (data) {
                var categories = [];
                for (i = 0; i < data.length; i++) {
                    case = {
                        "value": data[i].ddlSubCategoryId,
                        "text": data[i].SubCategoryName
                    }
                    categories.append(case);
                }
}

But this gives a

Syntax Error

and

Uncaught TypeError: categories.append is not a function

Can anyone help how to set them inside the loop.

Upvotes: 1

Views: 91

Answers (3)

Dij
Dij

Reputation: 9808

case is a reserved word in javascript so you can't use it as a variable name, use some other variable name. Also use push() to add values to an array.

dataType: "json",
data: { categoryId: CategoryHdId },
success: function (data) {
                var categories = [];
                for (i = 0; i < data.length; i++) {
                   // case = {  reserved word case will throw syntax error  
                      someVar = {      //declare as var if you don't want it to be global                 
                        "value": data[i].ddlSubCategoryId,
                        "text": data[i].SubCategoryName
                      }
                    categories.push(someVar);
                }
}

Upvotes: 4

kyun
kyun

Reputation: 10264

dataType: "json",
data: { categoryId: CategoryHdId },
success: function (data) {
                var categories = [];
                for (i = 0; i < data.length; i++) {
                    let temp = {
                        "value": data[i].ddlSubCategoryId,
                        "text": data[i].SubCategoryName
                    }
                    categories.push(temp);
                }
}

Upvotes: 0

krishna raikar
krishna raikar

Reputation: 2675

Try with this

var categories = []; 
for (i = 0; i < data.length; i++) { 
    categories.push({ "value": data[i].ddlSubCategoryId, "text": data[i].SubCategoryName })
}

Upvotes: 2

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