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0 pointsdotancohen6y ago0 comments

And what if foo had already been defined in the scope?

0 comments

The new one shadows it.

Local scope might not be what the programmer wants, though, depending on circumstance. Pseudocode:

  i = 3;
  foo = \0;

  while ( i-- ) {
      if ( foo = resultFromFooApi() ) {
          break;
      }
      sleep 1;
  }

  return foo;

j / k navigate · click thread line to collapse

The new one shadows it.

Local scope might not be what the programmer wants, though, depending on circumstance. Pseudocode:

  i = 3;
  foo = \0;

  while ( i-- ) {
      if ( foo = resultFromFooApi() ) {
          break;
      }
      sleep 1;
  }

  return foo;

j / k navigate · click thread line to collapse