JavaScript termination functions perform operations

  This article is mainly on the JavaScript termination function of the operation of the method is introduced, the need for friends can come to the reference, I hope to be helpful to everyone

1. If you terminate the return of a function, the example is as follows: Function Testa () {    alert (' a ');     alert (' B ');     alert (' C ') ; } testa (); Program execution will pop up ' a ', ' B ', ' C ' in turn.   Function Testa () {    alert (' a ');     return;     alert (' B ');     alert (' C ') ); } testa (); The execution of the program popup ' a ' will terminate.   2, call another function in the function to terminate the call function and also want to call the function terminated, the instance is as follows: function TESTC () {    alert (' C ');     return;     Alert (' CC '); }   function testd () {    TESTC ();     alert (' d ');} testd (); We saw in the TESTD called the TESTC, in the TESTC want to return to the TESTD also terminated, the contrary is only terminated TESTC, the program execution will pop up ' C ', ' d '.   function Testc () {    alert (' C ');     return false;     alert (' CC ');}   Functio n testd () {    if (!TESTC ()) return;     alert (' d ');} testd (); Two functions have been modified, TESTC return FALSE,TESTD in the return value of TESTC to make a judgment, so that the termination of the TESTC can also terminate the TESTD, program execution pop-up ' C ' will terminate.