How does a string convert to a number?

• 0
  Code to output in the order of written property code. I cannot understand how the line code = + code; converts strings to numbers. If the line is in the modal window appears - just the numbers 12, 5, 73. When I comment on it - the same thing, only with a plus. Why this or where can you read or watch about it?
  

  var codes = {
  	"+12": "USA",
  	"+5": "Poland", 
  	"+73": "Ukraine"
  }
  for (var code in codes){
  	var value = codes[code];
  	code =+ code;
  	alert(code + ":" + value);
  }

  JavaScript Penelope Brewer, Jan 29, 2019

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1 Answers
• 0

  code = + code;

  
  
  1. Let's place the spaces correctly to make it clearer what + actually refers to: code = + code; .
  
  2. By running read .

  Vivien Wang

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