Difference between CallExpression and MemberExpression

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半阙折子戏
半阙折子戏 2021-01-05 12:59

What is the difference? I looked at the ECMAScript specification, but did not understand. The real code examples that would help much.

If you can explain every line

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  •  北海茫月
    2021-01-05 13:30

    The relevant parts here are

    NewExpression:
        MemberExpression
        new NewExpression
    LeftHandSideExpression:
        NewExpression
        CallExpression

    which distinguishes the three major left hand side expressions:

    • constructor calls
    • function/method calls
    • primary expressions

    And all of them with member accesses in the right places. As such, the difference between the productions you listed is just that a CallExpression always contains a call - and may therefore not be part of the expression after a newoperator.

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