Here is a very simple program that I wrote using JQuery that will ask the user to give a number and then our program will check and determine whether the given number is a positive number or negative number using JQuery as our JavaScript library.
Add me at Facebook my address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com.
My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.
<html>
<head>
<title> Positive or Negative Number Checker in JQuery </title>
<script src="jquery.js"></script>
<style>
body {
font-family: arial;
font-size:15px;
font-weight:bold;
}
.input_bold {
font-weight: bold;
font-size:15px;
color: red;
}
</style>
<script>
$(document).ready(function(){
$("#check_it").click(function(){
var num = $("#num_value").val();
if(jQuery.isNumeric(num) == false){
alert('Please enter numeric value');
$('#num_value').val('');
$("#results").val('');
$('#num_value').focus();
}
else if (num>= 0)
{
remarks = num+ " is a Positive Number.";
$("#results").val(remarks);
}
else {
remarks = num+ " is a Negative Number.";
$("#results").val(remarks);
}
});
$("#clear").click(function(){
$("#num_value").val('');
$("#results").val('');
$("#num_value").focus();
});
});
</script>
</head>
<body>
<form>
Give a Number
<input type="text" id="num_value" size="3"autofocus/><br><br>
The result
<input type="text" id="results" class="input_bold" size="30" readonly/><br>
<br><br>
<button type= "button" id ="check_it">Check </button>
<button type= "button" id ="clear">Clear </button>
</form>
</body>
</html>
Add me at Facebook my address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com.
My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
Program Listing
<head>
<title> Positive or Negative Number Checker in JQuery </title>
<script src="jquery.js"></script>
<style>
body {
font-family: arial;
font-size:15px;
font-weight:bold;
}
.input_bold {
font-weight: bold;
font-size:15px;
color: red;
}
</style>
<script>
$(document).ready(function(){
$("#check_it").click(function(){
var num = $("#num_value").val();
if(jQuery.isNumeric(num) == false){
alert('Please enter numeric value');
$('#num_value').val('');
$("#results").val('');
$('#num_value').focus();
}
else if (num>= 0)
{
remarks = num+ " is a Positive Number.";
$("#results").val(remarks);
}
else {
remarks = num+ " is a Negative Number.";
$("#results").val(remarks);
}
});
$("#clear").click(function(){
$("#num_value").val('');
$("#results").val('');
$("#num_value").focus();
});
});
</script>
</head>
<body>
<form>
Give a Number
<input type="text" id="num_value" size="3"autofocus/><br><br>
The result
<input type="text" id="results" class="input_bold" size="30" readonly/><br>
<br><br>
<button type= "button" id ="check_it">Check </button>
<button type= "button" id ="clear">Clear </button>
</form>
</body>
</html>
