Question

In C#.Net, We would use Conditional Statement like this below:

string Place = TextBox1.Text == "" ? "School" : TextBox1.Text;

How to use Conditional Statement in JavaScript. I am assigning one value to the TextBox, If there is no value then I want to assign “1” to the TextBox.

Here I used like this,

document.getElementById('<%=txtPlace.ClientID %>').value   = obj[1];

If obj[1] == “” then I want to assign “1” to the TextBox. How to assign? It can be done easily by using If statement. But I want to know how to use Conditional Statement in JavaScript? Is there Conditional Statement in JavaScript? If so then how to use it?

Answer 1

Yes, Javascript does support the conditional operator:

document.getElementById('<%=txtPlace.ClientID %>').value = obj[1] ? obj[1] : "1";

Alternatively, you can take advantage of its short-circuiting logical OR operator:

document.getElementById('<%=txtPlace.ClientID %>').value = obj[1] || "1";