var arr = [100,101,199,200,201,99,-111] var reg =/^(100|200|1(?=[0-9])\d(?=[0-9])\d)$/ for(var i = 0 ; i < arr.length; i ++) { var bool = false; if(reg.test(arr[i].toString())) { bool=true; } document.write(arr[i]+"----------"+bool+"</br>");
}
<script> function check(obj){ var reg = /^\d+-?(\d+-?)*$/g; if(!reg.test(obj.value)){ obj.value = ""; } } </script> <input type="text" onkeyup="check(this)">
var reg =/^(100|200|1(?=[0-9])\d(?=[0-9])\d)$/
for(var i = 0 ; i < arr.length; i ++)
{
var bool = false;
if(reg.test(arr[i].toString()))
{
bool=true;
}
document.write(arr[i]+"----------"+bool+"</br>");
}
function check(obj){
var reg = /^\d+-?(\d+-?)*$/g;
if(!reg.test(obj.value)){
obj.value = "";
}
}
</script>
<input type="text" onkeyup="check(this)">