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while
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while

: 4

alert

  1. ++i:

    let i = 0;
    while (++i < 5) alert( i );
  2. i++

    let i = 0;
    while (i++ < 5) alert( i );

/

  1. 1 4

    let i = 0;
    while (++i < 5) alert( i );

    i=1 i++ i 1 < 5 alert 1

    2,3,4 ++

    i=4 5 while(5 < 5) 5

  2. 1 5

    let i = 0;
    while (i++ < 5) alert( i );

    i=1 i++ i i++ < 5 i=0 (++i < 5 )

    alert i=1

    2,3,4

    i=4 ++i 5 i 5 while(4 < 5) true alert

    i=5 while(5 < 5)


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