I am trying to get the results of a regular expression search on a string. I thought that execting the EXEC method successively will return the results, but it didn't.

Here is what I have,

var source = "this is sample text test123 this is sample text test456 this is sample text test789 old "
var re = /test\d{3}/gi

alert(re.exec(source))
alert(re.exec(source))
alert(re.exec(source))
alert(re.exec(source))

I expected the following alert messages: test123, test456, test789, null

but I got this: test123, test123, test123, test123

What am I doing wrong?

Thanks.

var source = "this is sample text test123 this is sample text test456 this
is sample text test789 old "
var re = /test\d{3}/gi

WScript.Echo(re.exec(source))
WScript.Echo(re.exec(source))
WScript.Echo(re.exec(source))
WScript.Echo(re.exec(source))

output:
test123
test456
test789
null

What version of JScript or which browser are you using?

I am trying to get the results of a regular expression search on a string. I
thought that execting the EXEC method successively will return the results,
but it didn't.

Here is what I have,

var source = "this is sample text test123 this is sample text test456 this
is sample text test789 old "
var re = /test\d{3}/gi

alert(re.exec(source))
alert(re.exec(source))
alert(re.exec(source))
alert(re.exec(source))

I expected the following alert messages: test123, test456, test789, null

but I got this: test123, test123, test123, test123

What am I doing wrong?

Thanks.

I tried it on IE 4, 5, and 5.5

  I ran it in Windows Script Host 5.6 and it worked fine:

  var source = "this is sample text test123 this is sample text test456 this
  is sample text test789 old "
  var re = /test\d{3}/gi

  WScript.Echo(re.exec(source))
  WScript.Echo(re.exec(source))
  WScript.Echo(re.exec(source))
  WScript.Echo(re.exec(source))

  output:
  test123
  test456
  test789
  null

  What version of JScript or which browser are you using?

  I am trying to get the results of a regular expression search on a string. I
  thought that execting the EXEC method successively will return the results,
  but it didn't.

  Here is what I have,

  var source = "this is sample text test123 this is sample text test456 this
  is sample text test789 old "
  var re = /test\d{3}/gi

  alert(re.exec(source))
  alert(re.exec(source))
  alert(re.exec(source))
  alert(re.exec(source))

  I expected the following alert messages: test123, test456, test789, null

  but I got this: test123, test123, test123, test123

  What am I doing wrong?

  Thanks.

I didn't realize that you need a scripting host version 5.5 or greater for it to work. There was a snippet at msdn that did a test for the version before executing their sample, so I upgraded my scripting host. I also added a check for the version in my regular expression test application (http://www.geocities.com/udeleng/regex.htm).

Try it out and let me know of any bugs.

Thanks.

  I ran it in Windows Script Host 5.6 and it worked fine:

  var source = "this is sample text test123 this is sample text test456 this
  is sample text test789 old "
  var re = /test\d{3}/gi

  WScript.Echo(re.exec(source))
  WScript.Echo(re.exec(source))
  WScript.Echo(re.exec(source))
  WScript.Echo(re.exec(source))

  output:
  test123
  test456
  test789
  null

  What version of JScript or which browser are you using?

  I am trying to get the results of a regular expression search on a string. I
  thought that execting the EXEC method successively will return the results,
  but it didn't.

  Here is what I have,

  var source = "this is sample text test123 this is sample text test456 this
  is sample text test789 old "
  var re = /test\d{3}/gi

  alert(re.exec(source))
  alert(re.exec(source))
  alert(re.exec(source))
  alert(re.exec(source))

  I expected the following alert messages: test123, test456, test789, null

  but I got this: test123, test123, test123, test123

  What am I doing wrong?

  Thanks.