sicongzhao/javascript-notes.md

## javascript-notes.md

      
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              javascript-notes.md
            
          
    eval()

The eval() function evaluates or executes an argument.
If the argument is an expression, eval() evaluates the expression. If the argument is one or more JavaScript statements, eval() executes the statements.
spread operator

...
The spread operator allows an expression to be expanded in places where multiple arguments (for function calls) or multiple elements (for array literals) or multiple variables  (for destructuring assignment) are expected.
spread operator is to tear down [] of an array.
  function myFunction(x, y, z) { }
  var args = [0, 1, 2];
  myFunction(...args);