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Add a hidden, read-only , hidden data property to any object... |
Syntax
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obj.addConst(key, value); |
Parameters
| Parameter | Type | Mandatory | Description | Util.js version |
|---|---|---|---|---|
| key | String |  | The name (key) of the property. | 1.0 |
| value | Variant | | The value associated with the property. | 1.0 |
Return value
| Value | Type | Notes | API Version |
|---|---|---|---|
| <object> | Object | If successful, the addProp() method returns the modified object. | 1.0 |
| <error> | TypeError | An error will be thrown if:
| 1.0 |
Example
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myObj = {};
myObj.addConst("foo", "bar");
myObj.foo; // "bar"
myObj.foo = "moo"; // does nothing, foo is read-only
myObj.foo // "bar"
for (i in myObj) {
// does not iterate foo (foo is hidden)
} |
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Availability
Requires:
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ContentsJump to:
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Property DefinitionsTopics:
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