Unable to grasp this javascript snippet function abc(){a:'b'; c:'f'; f:'t'; }; Can someone explain?

Question

function abc(){
   a:'b'; 
   c:'f'; 
   f:'t'; 
};

This snippet does not throw an error in console. I want to understand whats happening with the variables inside the function. Hows it being interpreted by the javascript engine.

Mmm, that script shows me 7 warnings http://jsbin.com/eraxak/1/edit — elclanrs, Jun 01 '13 at 09:22
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/label — VisioN, Jun 01 '13 at 09:25

score 6 · Answer 1 · edited May 23 '17 at 11:43

6

Those are not variables, they are labels.

They can be used like this (example from How can I use goto in Javascript?):

LABEL1: do {
  x = x + 2;
  ...
  // JUMP TO THE END OF THE DO-WHILE - A FORWARDS GOTO
  if (x < 100) break LABEL1;
  // JUMP TO THE START OF THE DO WHILE - A BACKWARDS GOTO...
  if (x < 100) continue LABEL1;
} while(0);

edited May 23 '17 at 11:43

Community

1
1

answered Jun 01 '13 at 09:24

Femaref

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Unable to grasp this javascript snippet function abc(){a:'b'; c:'f'; f:'t'; }; Can someone explain?

1 Answers1