How to create variable from value in variable?

How to create a variable from the value of another variable

• I need to create a variable from the value of another variable. As an example, this would be similar to how I would do this in VFP: nameOfNextVar = "port_no_1"; eval(nameOfNextVar) = 7493 Then I will be able to say: alert(port_no_1); And the alert would give me 7493... Is this possible in JavaScript??? TIA Dennis

• Answer:

  You can try something like this using JavaScript eval method. But using eval should be avoid if possible. var nameOfNextVar = "port_no_1"; eval(nameOfNextVar + " = " + 7493); alert(port_no_1); http://jsfiddle.net/ngTQf/ Other alternative is to define properties on the object or a current instance. You can also use window to define variables or properties. var nameOfNextVar = "port_no_1"; this[nameOfNextVar] = 7493; alert(this.port_no_1); window[nameOfNextVar] = 7493 alert(window.port_no_1); http://jsfiddle.net/ngTQf/2/