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klasskru [66]
3 years ago
10

What is double substitution

Chemistry
1 answer:
seropon [69]3 years ago
7 0

Answer:

In Tcl the words in a command are always exposed to two layers of interpretation: First, Tcl interprets them and prepares them as arguments to a routine. Second, the routine interprets those arguments according to its own principles. double substitution occurs when Tcl performs substitutions on original command and a routine then performs substitutions on the resulting arguments. Care is required in these cases to avoid errors, including vulnerability to injection attacks.

Explanation:

this probably wont help but here

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