javascript - Why does If Else statment not output anything? -


attempting have user input 4 numbers, are, , destination. have output direction heading.
no matter values enter same thing happens. how can make code use results of prompts?

var output = document.getelementbyid("output"); var number=prompt ("what current latitude?"); var number=prompt ("what current longitude?"); var number=prompt ("what destination latitude?"); var number=prompt ("what destination longitude?");   var intcurrentlatitude = 0; var intcurrentlongitude = 0; var intdestinationlatitude = 0; var intdestinationlongitude = 0;  if ( (intcurrentlatitude<=intdestinationlatitude) && (intcurrentlongitude<=intdestinationlongitude) ) { output.textcontent = "we'd headed north east, capt'n!"; } else if ( ( intcurrentlatitude<=intdestinationlatitude) && (intcurrentlongitude>=intdestinationlongitude) ) {     output.textcontent = "ye'd best head north west, captain!"; } else if ( ( intcurrentlatitude>=intdestinationlatitude) && (intcurrentlongitude>=intdestinationlongitude) ) { output.textcontent = "ye'd best head south west, captain!"; } else if ( ( intcurrentlatitude>=intdestinationlatitude) && (intcurrentlongitude<=intdestinationlongitude) ) { output.textcontent = "ye'd best head south east, captain!"; } else{ output.textcontent = "land ho!"; }

html

<head> <meta charset="utf-8">   <title>more if</title>  <body>  <div id= "output">    <div id= "input2">     </div>  </body>   <script src="moreif.js"></script> <script src="moreif2.js"></script> </head> </html>

you kept changing number value , prompt returns string. use parsefloat convert decimal in string form number. did not use result of prompts.

var output = document.getelementbyid("output");    var intcurrentlatitude = parsefloat(prompt("what current latitude?"));  var intcurrentlongitude = parsefloat(prompt("what current longitude?"));  var intdestinationlatitude = parsefloat(prompt("what destination latitude?"));  var intdestinationlongitude = parsefloat(prompt("what destination longitude?"));    if ( (intcurrentlatitude<=intdestinationlatitude) && (intcurrentlongitude<=intdestinationlongitude) ) {  output.textcontent = "we'd headed north east, capt'n!";  }  else if ( ( intcurrentlatitude<=intdestinationlatitude) && (intcurrentlongitude>=intdestinationlongitude) ) {      output.textcontent = "ye'd best head north west, captain!";  }  else if ( ( intcurrentlatitude>=intdestinationlatitude) && (intcurrentlongitude>=intdestinationlongitude) ) {  output.textcontent = "ye'd best head south west, captain!";  }  else if ( ( intcurrentlatitude>=intdestinationlatitude) && (intcurrentlongitude<=intdestinationlongitude) ) {  output.textcontent = "ye'd best head south east, captain!";  }  else{  output.textcontent = "land ho!";  }
<head>  <meta charset="utf-8">    <title>more if</title>    <body>   <div id= "output">       <div id= "input2">      </div>    </body>      <script src="moreif.js"></script>  <script src="moreif2.js"></script>  </head>  </html>


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