Javascript array not getting the array result

Question

HTML:

<input type="text" onblur="tournamentPrize(this.value);" placeholder="Player Number" id="player_number" name="data[Tournament][player_number]"> 

Javascript:

function tournamentPrize(v){
 var myArray=[2, 4, 8, 16, 32, 64, 128];
 var field_val = v;
 if(myArray.indexOf(field_val)==-1){ //alert(myArray.indexOf(field_val));
 if(field_val==2){
 $('#_1st_prize').removeAttr('disabled'); 
 $('#_2nd_prize').attr('disabled','disabled');
 $('#_2nd_prize').val(''); 
 $('#_3rd_prize').attr('disabled','disabled');
 $('#_3rd_prize').val('');
 $('#_4th_prize').attr('disabled','disabled');
 $('#_4th_prize').val(''); 
 $('#rest_prize').attr('disabled','disabled');
 $('#rest_prize').val('');
 }else if(field_val==4){
 $('#_1st_prize').removeAttr('disabled'); 
 $('#_2nd_prize').removeAttr('disabled'); 
 $('#_3rd_prize').attr('disabled','disabled');
 $('#_3rd_prize').val('');
 $('#_4th_prize').attr('disabled','disabled');
 $('#_4th_prize').val('')
 $('#rest_prize').removeAttr('disabled');
 }else{
 alert("You have entered "+field_val+" number");
 }
 }
 else{
 alert("You have entered wrong number"); 
 }
 }

I have calling tournamentPrize() function in onblur this field when i entered any number it is not showing the proper result. always display -1

I want to get my proper result when i will enter 2,4,8,16,32,64 and 128 But if i am entered any number except above number the result also showing wrong.

Suppose i want to enter 3 the alert box will be come alert("You have entered wrong number"); but it is showing alert("You have entered 3 number");

Please somebody help me

• Sarath: should be if (myArray.indexOf(field_val) !== -1)
• ˈvɔlə: Maybe you are also searching a polyfill of .indexOf() for Internet Explorer < 9: developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
• Chinmay235: I have using mozilla Firefox 26.0

Answer 1

function tournamentPrize(v){
 var myArray=[2, 4, 8, 16, 32, 64, 128];
 var field_val = +v; // convert value to number from string
 // OR var field_val = parseInt(v); OR var field_val = Number(v);
 if(myArray.indexOf(field_val) !== -1){ //entered valid value in array
 if (field_val==2) {
 ....
 } else if(field_val==4){
 .....
 } else{
 alert("You have entered "+field_val+" number");
 }
 }
 else{
 alert("You have entered wrong number"); 
 }
}

• Chinmay235: Showing Wrong result if i entered 2 it is showing alert("You have entered wrong number");
• Sarath: first check you are getting the field_val properly ?
• Sarath: var field_val = +v; // convert value to number from string
• Sarath: try this to convert the string value to numner
• Chinmay235: Yes it works I have using field_val = parseInt(v); Also your code is working Thanks....

Answer 2

You can use document.getElementById onblur I have created a JSFiddle

Answer 3

 function tournamentPrize(v){
 var myArray=[2, 4, 8, 16, 32, 64, 128];
 var field_val = v;
 if(myArray.indexOf(field_val)!=-1){ //alert(myArray.indexOf(field_val));
 if(field_val==2){
 $('#_1st_prize').removeAttr('disabled'); 
 $('#_2nd_prize').attr('disabled','disabled');
 $('#_2nd_prize').val(''); 
 $('#_3rd_prize').attr('disabled','disabled');
 $('#_3rd_prize').val('');
 $('#_4th_prize').attr('disabled','disabled');
 $('#_4th_prize').val(''); 
 $('#rest_prize').attr('disabled','disabled');
 $('#rest_prize').val('');
 }else if(field_val==4){
 $('#_1st_prize').removeAttr('disabled'); 
 $('#_2nd_prize').removeAttr('disabled'); 
 $('#_3rd_prize').attr('disabled','disabled');
 $('#_3rd_prize').val('');
 $('#_4th_prize').attr('disabled','disabled');
 $('#_4th_prize').val('')
 $('#rest_prize').removeAttr('disabled');
 }else{
 alert("You have entered "+field_val+" number");
 }
 }
 else{
 alert("You have entered wrong number"); 
 }
}

• Chinmay235: I have entered 8 it is Showing the alert message alert("You have entered wrong number");
• amit_183: it will give u the alert("You have entered wrong number"); becoz u are entering the position no in the array to be assesed and not the no. 8
• Chinmay235: :P How to match the array value with my field value?