Check input value in jquery using if else

Question

I have an input box whose id is sellingprice. i want to check the input value in jquery using the if else condition and display the result value in an input box whose id is result.

example:

if the value in input box is greater 50 it will display in the other input box the word too high

i'm a newbie in jquery and confused on how to implement it. Appreciate if someone may guide me through this.

I'll revised my question from above:

i have a table value something like this:

sellingprice      result

51                 ?
49                 ?

if the sellingprice value is greater than 50 this will be the calculation: sellingprice - 50 * 0.05 + 3.5

and if the sellingprice value is less than 50 the calculation will be: sellingprice * 0.07;

sorry i'm just trying to simplify my question but this is really the problem that i'm been facing as of this moment. Hope to guide me through this.

Fabrizio Calderan · Accepted Answer · 2011-12-19 11:12:48Z

3

[edit after your update]

var sp = $('#sellingprice').val() | 0;
if (sp <= 50) {
   $('#result').val(sp * 0.07)
}
else {
   $('#result').val(sp - 50 * 0.05 + 3.5) /* check the operations order */
}

where

$('#sellingprice').val() | 0

is an explicit (and more efficient than parseInt) int casting. If you can insert also floated point values change this statement with var sp = parseFloat($('#sellingprice').val())

with a ternary operator the code is simply reduced to

var sp = $('#sellingprice').val() | 0;
$('#result').val((sp <= 50)? sp - 50 * 0.05 + 3.5  : sp * 0.07)

edited Dec 19, 2011 at 11:12

answered Dec 19, 2011 at 10:33

Fabrizio Calderan

124k26 gold badges171 silver badges183 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Richard Neil Ilagan · Accepted Answer · 2011-12-19 10:32:40Z

1

$('#result').val(
    +$('#sellingprice').val() > 50 ? "too high" : "do backflips!"
);

answered Dec 19, 2011 at 10:32

Richard Neil Ilagan

14.8k6 gold badges52 silver badges68 bronze badges

Comments

maskie · Accepted Answer · 2011-12-19 10:31:26Z

0

Try this:

var val = parseFloat($("#sellingprice").val());
var parsedVal = 0;

if (!isNaN(val))
{
  parsedVal = val;
}

if (parsedVal > 50)
{
   $("#result").val("Too High");
}

answered Dec 19, 2011 at 10:31

maskie

4544 silver badges8 bronze badges

Collectives™ on Stack Overflow

Check input value in jquery using if else

i'm a newbie in jquery and confused on how to implement it. Appreciate if someone may guide me through this.

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

i'm a newbie in jquery and confused on how to implement it. Appreciate if someone may guide me through this.

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related