eval

Syntax

eval(X)

Details

Evaluates the given metacode.

Note:
  • DolphinDB eval executes DolphinDB metacode.
  • Python's built-in eval executes a Python expression string.
  • pandas.eval executes expression strings on pandas objects.

Parameters

X is metacode.

Examples

eval(<1+2>);
// output: 3

eval(<1+2+3=10>);
// output: 0

eval(expr(6,<,8));
// output: 1

eval(expr(sum, 1 2 3));
// output: 6

a=6; b=9;
eval(expr(<a>,+,<b>));
// output: 15