Question

while review a javascript coding, i saw that

var detailInf = {
  "hTitle":"Results",
  "hMark":"98"
};

What’s the concept behind this js coding. While give alert for the variable its shows as “[object Object]”. So this is an object, then how can we access the variable and reveal the data from this object.

Answer 1

That’s an object in JSON format. That’s a javascript object literal. Basically, the bits to the left of the :‘s are the property names, and the bits to the right are the property values. So, what you have there is a variable called detailInf, that has two properties, hTitle and hMark. hTitle‘s value is Results, hMark‘s value is 98.

var detailInf = { "hTitle":"Results", "hMark":"98"};
alert(detailInf.hTitle); //should alert "Results"
alert(detailInf.hMark); //should alert "98

Edit Paolo’s answer is better 🙂