get largest between two input fields

Question

I have following input field for DOB.

<div class="po.pependent">
        <input type="text", class="zm-textbox dob-input-mask" placeholder="dd/mm/yyyy" />,
         <input type="text", class="zm-textbox dob-input-mask" placeholder="dd/mm/yyyy"/></div>

So if enter dob 11/12/1999 and 11/12/1997 the function paymentForm.computeAge return 17 and 19.

Now in JS i am trying to get the value of these to Dob convert them and get the highest age among the two dob entered.

$(".po.pependent:visible input.zm-textbox.dob-input-mask:visible")
        .each(function() {
            paymentForm.computeAge($(this).val())
    })

This paymentForm.computeAge return the calculated age from the given dob date comparing with current system date.

What is `paymentForm`? What does `computeAge` do? How do you even get the resulting array having no return statements at all? — Yury Tarabanko, Aug 30 '17 at 06:36
If you're using a particular library, please include a tag for it. This code makes no sense as plain javascript. — RobG, Aug 30 '17 at 06:39

score -1 · Answer 1 · answered Aug 30 '17 at 06:37

-1

Once you get your array, you can pass it to Math.max.apply() like I have done here with this example array.

var numbers = [1, 2, 3, 4];
console.log(Math.max.apply(null, numbers))
console.log(Math.min.apply(null, numbers))

answered Aug 30 '17 at 06:37

Get Off My Lawn

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If this is the ideal solution, please choose to close it as dupe – Rajesh Aug 30 '17 at 06:37

Milan Chheda · Accepted Answer · 2017-08-30T06:47:29.887

-1

You need to use Math.max. Below are 2 ways of doing it:

console.log(Math.max(17, 19));

var ageArray = [17, 19]
var max_of_array = Math.max.apply(Math, ageArray.map(Number));
console.log(max_of_array)

edited Aug 30 '17 at 06:47

answered Aug 30 '17 at 06:37

Milan Chheda

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Please do not answer duplicate posts. If you know the solution, and you think its basic, please look for similar posts and mark them as dupe. Its wrong to answer a dupe – Rajesh Aug 30 '17 at 06:41
I tried to do it it retruns NAN – Prabin Poudel Aug 30 '17 at 06:43
@PrabinPoudel - the code in the answer does not return NaN ... perhaps you need `var max_of_array = Math.max.apply(Math, ageArray.map(Number));` instead – Jaromanda X Aug 30 '17 at 06:45
In that case, you aren't getting an array. You need to share what you are getting. – Milan Chheda Aug 30 '17 at 06:45
@MilanChheda - it could be an array ... of strings ... which is what `$(this).val()` will always be – Jaromanda X Aug 30 '17 at 06:45
Possible @JaromandaX. Prabin, check again using `ageArray.map(Number)` and also, hope its not an multi-array. – Milan Chheda Aug 30 '17 at 06:47
Possible? I'd say it's more than likely that an array derived from `$(this).val()` is an array of strings ... it won't be anything other than strings in fact – Jaromanda X Aug 30 '17 at 06:50
You are right. `$(this).val()` returns a string. @PrabinPoudel - Did you tried the updated code? – Milan Chheda Aug 30 '17 at 06:51
var a=$(".po.pependent:visible input.zm-textbox.dob-input-mask:visible").each(function() {console.log(paymentForm.computeAge($(this).val()))}); I get following output 17 19 undefined – Prabin Poudel Aug 30 '17 at 06:58
and then var max_of_array = Math.max.apply(Math, a.map(Number)); console.log(max_of_array) i get 1 indefiened – Prabin Poudel Aug 30 '17 at 07:02
`each` doesn't returns a value. You cannot have `var a = ` – Milan Chheda Aug 30 '17 at 07:13
when i log$(".po.pependent:visible input.zm-textbox.dob-input-mask:visible").each(function() {$(this).val()}); i get [, ] as ouput – Prabin Poudel Aug 30 '17 at 07:20
i need the value of those #dob0 and #dob1 and get the highest from them – Prabin Poudel Aug 30 '17 at 07:23
Its unclear. Create a working JSFiddle and update in your question. – Milan Chheda Aug 30 '17 at 07:27
I just updated the question – Prabin Poudel Aug 30 '17 at 07:41
ok so finally i am able to solve it ,,just need to delcare a temp araay and push all dob and get the max value as milan recommended – Prabin Poudel Aug 31 '17 at 05:03

get largest between two input fields

2 Answers2