I'm struggling with this small code snippet that is supposed to check if a variable is a number, but it doesn't seem to be working correctly.
var cost_value = 7777;
alert(cost_value);
if (typeof(cost_value) !== "number") {
alert("not a number");//7777
} else {
alert("a number");
}
No matter what, it always alerts as "not a number".
Trying to change it to if(jQuery.type(cost_value) !== "number"
Unfortunately, the modification doesn't work either. Any suggestions?
To check if a value is numeric using jQuery, you can utilize the isNumeric function.
var amount = 1234;
if (!$.isNumeric(amount)) {
alert("not a number");//1234
} else {
alert("a number");
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>Note: I've noticed the initial comment and corrected your spelling mistake as well, so that issue has been addressed.
You have the ability to achieve something similar
var value_cost= 7777;
console.log(typeof(value_cost));
if (String(typeof(value_cost)) !== "number") {
alert("not a number");//7777
} else {
alert("a number");
}
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