Category:Tcl: Difference between revisions
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(→Key Commands: Described another important command) |
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:Generate an error exception. The additional optional arguments allow finer control over the exception. |
:Generate an error exception. The additional optional arguments allow finer control over the exception. |
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'''eval''' ''arg''... |
'''eval''' ''arg''... |
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:Concatenate the arguments and evaluate the resulting string as a script. Note that from Tcl 8.5 onwards, this should only be used very rarely; the expansion syntax covers the vast majority of previous uses for |
:Concatenate the arguments and evaluate the resulting string as a script. Note that from Tcl 8.5 onwards, this should only be used very rarely; the expansion syntax covers the vast majority of previous uses for '''eval'''. |
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'''list''' ''arg''... |
'''list''' ''arg''... |
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:Create a list out of the arguments and return it. The resulting list is also guaranteed to be a well-formed script that will evaluate the sequence of arguments as a command and arguments without further substitution, making the '''list''' command useful for predictable code synthesis. |
:Create a list out of the arguments and return it. The resulting list is also guaranteed to be a well-formed script that will evaluate the sequence of arguments as a command and arguments without further substitution, making the '''list''' command useful for predictable code synthesis. |
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