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This internal operator converts its input argument to a string.
The ToString operator converts its input arguments according to the following table:
| Input Type | Result |
|---|---|
| Undefined | "undefined" |
| Null | "null" |
| Boolean | If the argument is true, then the result is "true" otherwise the result is "false" |
| Number | Special cases are provided for NaN and Infinity where "NaN" and "Infinity" will be returned. Otherwise the string is a textual representation of the value. The string is formatted into decimal or exponential formats as determined by the magnitude of the value. |
| String | No conversion, the input value is returned unchanged. |
| Object | An internal conversion to a primitive takes place followed by a conversion from that primitive to a string. Some objects will return a string value that is immediately useful. |
In Microsoft environments, this is available most of the time but does not work for certain objects. In particular, there may some objects in WSH for which it is not supported.
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| ToPrimitive | Up | toString() |
JavaScript Programmer's Reference, Cliff Wootton Wrox Press (www.wrox.com) Join the Wrox JavaScript forum at p2p.wrox.com Please report problems to support@wrox.com © 2001 Wrox Press. All Rights Reserved. Terms and conditions. | ||