comparison of two variables using match

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comparison of two variables using match

newphpcoder

Hi,

Good day!

I have problem in checking if the two values of variables is match or like.

sample 1:

in this sample 1 my condition works fine.

lot_number = LO130227003
lot_number_scan = LO130227003

if(lot_number === lot_number_scan)
{
alert('correct');
}
else
{
alert('wrong');
}

sample 2:
in this sample 2 my condition did not work.

lot_number = LO130227003-LO130228001
lot_number_scan = LO130227003

if(lot_number === lot_number_scan)
{
alert('correct');
}
else
{
alert('wrong');
}

I tried to find the solution in this problem but I can't find the same problem.
I want to happen is:

if(LO130227003-LO130228001 LIKE OR Match LO130227003)
{
alert('correct');
}
elseif(LO130227003-LO130228001 LIKE OR Match LO130227003LO130228001)
{
alert('correct');
}
else
{
alert('wrong');
}

I don't know what syntax should I used.

here is my code:

function sequence(varid)
{

   var a=  varid.indexOf("/")
  var b=  varid.slice(0,a); 
   b =  parseInt(b)
    c= (b+1)
var f = varid.slice(a); 


 if (window.event.keyCode==13 || window.event.keyCode==10) {

 var lot_number = document.getElementsByName("lot_number")[b].value;
 var lot_number_scan = document.getElementsByName("lot_number_scan")[b].value;

var counting = document.getElementsByName("lot_number_scan");

counting = counting.length;

 var newid = c + f
 if(c == counting)
 {
  document.getElementById("issued_by").focus();    

 }
 else
 {
  //----In this part I need to check if lot_number like lot_number_scan
 if(lot_number === lot_number_scan)       

 {  

 document.getElementById(newid).focus();     

 }
 else{
    document.getElementsByName("lot_number_scan")[b].value = ''; 
    document.getElementsByName("lot_number_scan")[b].focus(); 
 }
 }

 }
}

I hope someday can help me to fix this problem.

Thank you so much.

wmwong

I'm assuming your lot_number and lot_number_scan are strings. If you want to do matching with strings that are like each other, use regular expressions.

newphpcoder

waht do you mean regular expression can you give an example?

Thank you

wmwong

Here's an entire page about regular expressions in JavaScript.

https://developer.mozilla.org/en-US/docs/JavaScript/Guide/Regular_Expressions

007Julien

Use search or test with something like this.

var lot_number_scan = LO130227003-LO130228001
var lot_number_scan = LO130227003
var pos, rgx = new RegExp(lot_number_scan,'gi');

[COLOR="#0000FF"]// Search a string for a specified value[/COLOR]
if (-1<(pos = lot_number_scan.search(rgx)) {
      // do something with the position of the match
}
[COLOR="#0000FF"]// Test for in a string[/COLOR]
if (rgx.test(var lot_number_scan)){
      alert('correct');}
else {
      alert('wrong');}

newphpcoder

Hi,

I tried this code:

<script type = "text/javascript">

var lot_number = "LO130227003-LO130228001";
var lot_number_scan = "LO130227003";
//alert (new RegExp(lot_number_scan,"gi").test(lot_number)); 

var lot_number = "LO130227003-LO130228001";
var lot_number_scan = "LO130228001";
//alert (new RegExp(lot_number_scan,"gi").test(lot_number)); 

var lot_number = "LO130227003-LO130228001";
var lot_number_scan = "LO130227003LO130228001";
alert (new RegExp(lot_number_scan,"gi").test(lot_number)); 


</script>

and the first and second alert is true but in the third alert the result is false.

how can I make it true, if the real data of lot_number_scan is like that?
Thank you so much

newphpcoder

When I try your code:

<html>
<head>
<script type = "text/javascript">

var lot_number_scan = LO130227003-LO130228001
var lot_number_scan = LO130227003
var pos, rgx = new RegExp(lot_number_scan,'gi');

// Search a string for a specified value
if (-1<(pos = lot_number_scan.search(rgx)) {
      // do something with the position of the match
}
// Test for in a string
if (rgx.test(var lot_number_scan)){
      alert('correct');}
else {
      alert('wrong');}

</script>
</head>
<body>
<b>Testing</b>
</body>
</html>

this part:
if (-1<(pos = lot_number_scan.search(rgx)) { become red

} become red also the partner closing curly bracket

if (rgx.test(var lot_number_scan)){ the var has color red line.

What's wrong or missing in my codes.

Thank you so much

007Julien

Sorry. The proposed code was not right.

  

var lot_number_scan = "LO130227003-LO130228001";
var lot_number_scan = "LO130227003";
var pos, rgx = new RegExp(lot_number_scan,'gi');

var lot_number_scan = "LO130227003-LO130228001";
var lot_number_scan = "LO130227003";
var pos, rgx = new RegExp(lot_number_scan,'gi');

// Search a string for a specified value
if (-1<(pos = lot_number_scan.search(rgx))) {
      // do something with the position of the match
}
// Test for in a string
if (rgx.test(lot_number_scan)){
      alert('correct');}
else {
      alert('wrong');}

Otherwise, there is no error in this code

var lot_number = "LO130227003-LO130228001";
var lot_number_scan = "LO130227003LO130228001";
alert (new RegExp(lot_number_scan,"gi").test(lot_number));

lot_number do not contains lot_number_scan !

newphpcoder

I tried the two codes you said.

The first one I got wrong output, the second is false.

Thank you

newphpcoder

Good day!

I did'nt match the number. I just want to happen is if lot_number has match or like in lot_number_scan it will be true. I want to check for example.

lot_number = 'LO130227003-LO130228001'
lot_number_scan = 'LO130227003LO130228001'

if lot_number_scan has equivalent or match data in lot_number_scan.

for example:

if(lot_number == LO130227003')
{
true
}
elseif(lot_number == LO130228001')
{
true
}
elseif(lot_number == LO130227003LO130228001')
{
true
}
else{
false
}

Thank you