javascript - Help with JS and functions parameters -


Does JS support two functions with the same name and different parameters?

(a, b) {// A and B numbers are} function F1 (A, B, C) {// A is string / / b and c numbers}

Do I have any problems for IE7, FF, Opera?

Javascript does not help you will call method overloading in other languages, But there are more than one action, such as to use objects, to see how many arguments have been applied to the function: 

  function f1 (A, b, c) {if (Arguments.length == 2) {// f1 has been called with two arguments} and if (arguments.length == 3) {// f1 is called with three arguments}}  < / Pre> 
 Additionally you can You can type the logic, the number and string  primitives  for the  typeof  operator is safe to use: 
 
  function F1 (A, B, C) {If (typef A == 'number' & amp; amp; typeof b == 'number') {// a and b are numbers} otherwise (if type = A 'string' & amp; ; Amp; amp; type; b == 'number' & amp; amp; amp; amp; amp; amp; amp; amp; type; {// A is a string, b and c numbers}}  
 
 and the following article contains very similar sophisticated techniques Closer to imitate the  method overloading :  
  •  
    •
    , which takes advantage of some JavaScript language features , Function app, etc.,

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