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Expression

• A fragment of code that producues a value is called expression , Everty value written literally is a expression

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Operators

• Arithmetic Operators
  • Addition +
  • Subtraction -
  • Multiply *
  • Divsion /
  • Exponentional **
  • Increment ++
  • Decrement —
• Assignment Operators
  • = same as x = y
  • += same as x = x + y
  • -= same as x = x - y
  • *= same as x = x * y
  • /= same as x = x / y
  • %= same as x = x % y
  • **= same as x = x ** y
• Comparision operators
  • == equal to (type ignore)
  • != not eq to (type ignore)
  • === equal to
  • !== not equal to
  • >= gt eq to
• Logical Operators
  • || or
  • && and
  • ! not
• Bitwise operators (operators on each bit)
• Comments (code that doesn’t execute)
  • let a = 10 ;// Single line comment
  • /* Multiline comment*/