I wonder is there any diffrence, in below codes:
function x(){
var a = 1;
}
and:
function x(){
this.a = 1;
}
I wonder is there any diffrence, in below codes: function x(){ var a =
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I wonder is there any diffrence, in below codes:
function x(){
var a = 1;
}
and:
function x(){
this.a = 1;
}
The first creates a locally-scoped variable, which will not be retained after the function exits (unless by a closure created inside the function).
The second creates an expando property on the
thisobject, possibly overwriting any previous value for that property.