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Issues with with(object) statement

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Oct 13.2009

Hey guys

Why shouldn’t the following work? Seems to be the correct syntax. Opera issue?

[CODE]var foo = {};
with (foo) {
bar1 = “orange”;
bar2 = “apple”;
}
alert(foo.bar1); //alerts undefined[/CODE]

p.s. yeah I know with(object) is frowned upon, but it’s useful in migrating your functions to OOP Javascript.

Thanks in advance

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JavaScript

4 Comments(s) ↴

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@thraddashOct 13.2009 — Create the object like so:

[CODE]var foo = {
bar1 : "orange",
bar2 : "apple"
};
alert(foo.bar1);[/CODE]

I only use [B]with[/B] when it comes to manipulating elements, eg:

[CODE]with (document.getElementById("element").style) {
display = (display == "none") ? "" : "none";
}[/CODE]
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@mityaauthorOct 13.2009 — Thanks. Perhaps it can only be used with objects derived from DOM tree elements, then.
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@astupidnameOct 13.2009 — [CODE]//with only works on properties that are already in an object,
//(all the more reason not to use the with statement):
var foo = {bar1:null, bar2:null};

with (foo) {
bar1 = "orange";
bar2 = "apple";
}

alert(foo.bar1); //alerts 'orange'[/CODE]
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@mityaauthorOct 13.2009 — Interesting. Thanks.
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