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Showing most liked content on 08/15/2017 in all areas

  1. 1 point
    var a = ["123", 123, "1a2b3c", 122.222, "A"]; for(var i=0 ; i<a.length ; i++){ if(isNaN(a[i])){ alert('a['+i+'] is not a number (nan)'); } }
  2. 1 point
    IF the values in the array are taken from text type input, the numbers in array will be a string/text, it is precautionary to make sure when used in math operations that 16 + "4" don't equal "164", but 20.
  3. 1 point
    Because the string "A" cannot be converted to a number.
  4. 1 point
    The RSS item has a <link> field specifically for the URL of the resource you're sharing. An RSS reader may not necessarily parse HTML, so you should make use of the proper RSS fields. You can't send POST variables from RSS, but a link can contain a query string from which PHP can create $_GET variables.
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