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regular expression for positive integer

Posted on 2006-07-23
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Last Modified: 2006-11-18
hello, i need a strict regexp pattern for positive integer

1) must be only numbers
2) more than zero
3) cannot have '-' or '+' or 'e' or '^' signs

thanks
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Question by:dynamicrevolutions
1 Comment
 
LVL 6

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SysTurn earned 500 total points
ID: 17165968
You can use: /^[1-9]+[0-9]*$/

<script type="text/javascript">
<!--
function validate(field) {
    if( !field.value.match(/^[1-9]+[0-9]*$/) )
    {
        alert("Invalid entry! Only numbers more than zero are allowed");
        field.value = '';
        field.focus();
        return false;
    }
    else
    {
        return true;
    }
}
//-->
</script>

<input type="text" name="numeric" onblur="validate(this);" />


Kind Regards
Bakr
0

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