function fun(){
var a=10;
var b=20;
document.getElementById("output1")=a;
document.getElementById("output2")=b;
}
This is a JavaScript function
var Data = [{label="1", value=output1},{label="2", value=output2}];
I want the values of a and b to be used in the array Data. But I am unable to access it. Hope one will get through this soon.
Define a and b outside the function. Call the function to assign them values. In the Data array instead of = use : to give values to properties in object
var a;
var b;
function fun(){
a=10;
b=20;
// document.getElementById("output1")=a;
// document.getElementById("output2")=b;
}
fun()
var Data = [{label:"1", value:a},{label:"2", value:b}];
console.log(Data)a and b in this context will be local to the function - you have to define them outside the function. Also make sure your object properties are in the format key: value instead of key = value:
var a, b;
function fun() {
a = 10;
b = 20;
document.getElementById("output1").innerText = a;
document.getElementById("output2").innerText = b;
}
fun();
var Data = [{
label: "1",
value: a
}, {
label: "2",
value: b
}];
console.log(Data);<p id="output1"></p>
<p id="output2"></p>Rather making changes in your existing scope of variables,
You can return the values from fun and then use it in another function where you are creating data;
function fun(){
var a=10;
var b=20;
//document.getElementById("output1")=a;
//document.getElementById("output2")=b;
return [a, b];
}
var ab = fun();
var Data = [{label: "1", value: ab[0]},{label: "2", value: ab[1]}];
console.log(Data)