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All topics›JavaScript›Stacks & queues

Basic Calculator II

intermediatelayer B8 · Stacks & queues5 tests

Evaluate a string expression built from non-negative integers, the operators +, -, *, /, and spaces. There are no parentheses.

  • * and / bind tighter than + and -, so 3+2*2 is 7
  • Division truncates toward zero: 3/2 is 1
  • Spaces may appear anywhere and mean nothing
  • Do not use eval or Function

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