How to build function for my calculator

Resolved maxflexpl
(@maxflexpl)

9 months, 1 week ago

Dears,

again i need yours help 😉
So i try to build calculator for Bra SIZE.
So i have two fields:
Number Fisrt Field (F1) where customer can write size (scope: number from 60 to 125)
Number Second Field(F2) where customer can write size (scope: number from 69.5 to 159)

I have to calculate a BRA size from First and Second Field.
Here are some rules for First field (F1):
if(fieldname1 <= 67) return 60;
if(fieldname1 <= 73) return 65;
if(fieldname1 <= 80) return 70;
if(fieldname1 <= 86) return 75;
if(fieldname1 <= 92) return 80;
if(fieldname1 <= 98) return 85;
if(fieldname1 <= 104) return 90;
if(fieldname1 <= 110) return 95;
if(fieldname1 <= 115) return 100;
if(fieldname1 <= 120) return 105;
if(fieldname1 <= 125) return 110;

I need create rules where
if(fieldname1 <= 67 and fieldname2 <=72 return 60A
if(fieldname1 <= 67 and fieldname2 <=74 return 60B
if(fieldname1 <= 67 and fieldname2 <=77 return 60C
etc……
if(fieldname1 <= 73 and fieldname2 <=74 return 65A
if(fieldname1 <= 73 and fieldname2 <=77 return 65B
etc….
if(fieldname1 <= 80 and fieldname2 <=77 return 70A
if(fieldname1 <= 80 and fieldname2 <=79 return 70B
etc….

How to build function for that kind of calculator? 🙂

Viewing 11 replies - 1 through 11 (of 11 total)

Plugin Author codepeople
(@codepeople)

9 months, 1 week ago
Hello @maxflexpl

Some considerations first.

– In javacript the “AND” operator is represented by double ampersand: &&
– The texts must be enclosed between single or double quotes.
– It is preferred to nest the “if” conditional statements to improves the performance.
– The lines of code should be ended with semicolon.

So, the equation’s structure would be similar to:
```
(function(){
    var f1 = fieldname1, f2 = fieldname2;

    if(f1 <= 67)
    {
        if(f2 <=72) return '60A';
        if(f2 <=74) return '60B';
        if(f2 <=77) return '60C';
    }
    else if(f1 <= 73)
    {
        if(f2 <=74) return '65A';
        if(f2 <=77) return '65B';
    }
    else if(f1 <= 80)
    {
         if(f2 <=77) return '70A';
         if(f2 <=79) return '70B';
    }
})()
```
Best regards.
maxflexpl
(@maxflexpl)

9 months, 1 week ago

@codepeople Thanks again – i used your function and its works 🙂
One question, what kind of function create to show information – message to the customer, when conditions are not met?
Plugin Author codepeople
(@codepeople)

9 months, 1 week ago
Hello @maxflexpl

You simply should to return the error message if the previous conditions are not valid. Similar to:
```
(function(){
    var f1 = fieldname1, f2 = fieldname2;

    if(f1 <= 67)
    {
        if(f2 <=72) return '60A';
        if(f2 <=74) return '60B';
        if(f2 <=77) return '60C';
    }
    else if(f1 <= 73)
    {
        if(f2 <=74) return '65A';
        if(f2 <=77) return '65B';
    }
    else if(f1 <= 80)
    {
         if(f2 <=77) return '70A';
         if(f2 <=79) return '70B';
    }
    return 'Invalid conditions';
})()
```
Best regards.
maxflexpl
(@maxflexpl)

9 months, 1 week ago

@codepeople (again thank you 🙂 )
I added code and its works when condition are not met, but when i put for example:
F2(fieldname2)=122
F3(fieldname3)=69
Results shows 110A (48A)

and its error, because there is no condition for that kind of combination of F2 and F3.
I wanna add message to the customer for that kind of situation 🙂

Below function that i use:

(function(){

if(fieldname2 <= 67)
{
if(fieldname3 <72) return ’60A (28A)’;
if(fieldname3 <=74) return ’60B (28B)’;
if(fieldname3 <77) return ’60C (28C)’;
if(fieldname3 <=79) return ’60D (28D)’;
if(fieldname3 <82) return ’60E (28DD)’;
if(fieldname3 <=84) return ’60F (28E)’;
if(fieldname3 <87) return ’60G (28F)’;
if(fieldname3 <=89) return ’60H (28FF)’;
if(fieldname3 <92) return ’60I (28G)’;
if(fieldname3 <=94) return ’60J (28GG)’;
if(fieldname3 <97) return ’60K (28H)’;
if(fieldname3 <=99) return ’60L (28HH)’;
if(fieldname3 <102) return ’60M (28J)’;
if(fieldname3 <=104) return ’60N (28JJ)’;
if(fieldname3 <107) return ’60O (28K)’;
if(fieldname3 <=109) return ’60P (28KK)’;
}
else if(fieldname2 <= 73)
{
if(fieldname3 <77) return ’65A (30A)’;
if(fieldname3 <=79) return ’65B (30B)’;
if(fieldname3 <82) return ’65C (30C)’;
if(fieldname3 <=84) return ’65D (30D)’;
if(fieldname3 <87) return ’65E (30DD)’;
if(fieldname3 <=89) return ’65F (30E)’;
if(fieldname3 <92) return ’65G (30F)’;
if(fieldname3 <=94) return ’65H (30FF)’;
if(fieldname3 <97) return ’65I (30G)’;
if(fieldname3 <=99) return ’65J (30GG)’;
if(fieldname3 <102) return ’65K (30H)’;
if(fieldname3 <=104) return ’65L (30HH)’;
if(fieldname3 <107) return ’65M (30J)’;
if(fieldname3 <=109) return ’65N (30JJ)’;
if(fieldname3 <112) return ’65O (30K)’;
if(fieldname3 <=114) return ’65P (30KK)’;
}
else if(fieldname2 <= 80)
{
if(fieldname3 <82) return ’70A (32A)’;
if(fieldname3 <=84) return ’70B (32B)’;
if(fieldname3 <87) return ’70C (32C)’;
if(fieldname3 <=89) return ’70D (32D)’;
if(fieldname3 <92) return ’70E (32DD)’;
if(fieldname3 <=94) return ’70F (32E)’;
if(fieldname3 <97) return ’70G (32F)’;
if(fieldname3 <=99) return ’70H (32FF)’;
if(fieldname3 <102) return ’70I (32G)’;
if(fieldname3 <=104) return ’70J (32GG)’;
if(fieldname3 <107) return ’70K (32H)’;
if(fieldname3 <=109) return ’70L (32HH)’;
if(fieldname3 <112) return ’70M (32J)’;
if(fieldname3 <=114) return ’70N (32JJ)’;
if(fieldname3 <117) return ’70O (32K)’;
if(fieldname3 <=119) return ’70P (32KK)’;
}
else if(fieldname2 <= 86)
{
if(fieldname3 <87) return ’75A (34A)’;
if(fieldname3 <=89) return ’75B (34B)’;
if(fieldname3 <92) return ’75C (34C)’;
if(fieldname3 <=94) return ’75D (34D)’;
if(fieldname3 <97) return ’75E (34DD)’;
if(fieldname3 <=99) return ’75F (34E)’;
if(fieldname3 <102) return ’75G (34F)’;
if(fieldname3 <=104) return ’75H (34FF)’;
if(fieldname3 <107) return ’75I (34G)’;
if(fieldname3 <=109) return ’75J (34GG)’;
if(fieldname3 <112) return ’75K (34H)’;
if(fieldname3 <=114) return ’75L (34HH)’;
if(fieldname3 <117) return ’75M (34J)’;
if(fieldname3 <=119) return ’75N (34JJ)’;
if(fieldname3 <122) return ’75O (34K)’;
if(fieldname3 <=124) return ’75P (34KK)’;
}
else if(fieldname2 <= 92)
{
if(fieldname3 <92) return ’80A (36A)’;
if(fieldname3 <=94) return ’80B (36B)’;
if(fieldname3 <97) return ’80C (36C)’;
if(fieldname3 <=99) return ’80D (36D)’;
if(fieldname3 <102) return ’80E (36DD)’;
if(fieldname3 <=104) return ’80F (36E)’;
if(fieldname3 <107) return ’80G (36F)’;
if(fieldname3 <=109) return ’80H (36FF)’;
if(fieldname3 <112) return ’80I (36G)’;
if(fieldname3 <=114) return ’80J (36GG)’;
if(fieldname3 <117) return ’80K (36H)’;
if(fieldname3 <=119) return ’80L (36HH)’;
if(fieldname3 <122) return ’80M (36J)’;
if(fieldname3 <=124) return ’80N (36JJ)’;
if(fieldname3 <127) return ’80O (36K)’;
if(fieldname3 <=129) return ’80P (36KK)’;
}
else if(fieldname2 <= 98)
{
if(fieldname3 <97) return ’85A (38A)’;
if(fieldname3 <=99) return ’85B (38B)’;
if(fieldname3 <102) return ’85C (38C)’;
if(fieldname3 <=104) return ’85D (38D)’;
if(fieldname3 <107) return ’85E (38DD)’;
if(fieldname3 <=109) return ’85F (38E)’;
if(fieldname3 <112) return ’85G (38F)’;
if(fieldname3 <=114) return ’85H (38FF)’;
if(fieldname3 <117) return ’85I (38G)’;
if(fieldname3 <=119) return ’85J (38GG)’;
if(fieldname3 <122) return ’85K (38H)’;
if(fieldname3 <=124) return ’85L (38HH)’;
if(fieldname3 <127) return ’85M (38J)’;
if(fieldname3 <=129) return ’85N (38JJ)’;
if(fieldname3 <132) return ’85O (38K)’;
if(fieldname3 <=134) return ’85P (38KK)’;
}
else if(fieldname2 <= 104)
{
if(fieldname3 <102) return ’90A (40A)’;
if(fieldname3 <=104) return ’90B (40B)’;
if(fieldname3 <107) return ’90C (40C)’;
if(fieldname3 <=109) return ’90D (40D)’;
if(fieldname3 <112) return ’90E (40DD)’;
if(fieldname3 <=114) return ’90F (40E)’;
if(fieldname3 <117) return ’90G (40F)’;
if(fieldname3 <=119) return ’90H (40FF)’;
if(fieldname3 <122) return ’90I (40G)’;
if(fieldname3 <=124) return ’90J (40GG)’;
if(fieldname3 <127) return ’90K (40H)’;
if(fieldname3 <=129) return ’90L (40HH)’;
if(fieldname3 <132) return ’90M (40J)’;
if(fieldname3 <=134) return ’90N (40JJ)’;
if(fieldname3 <137) return ’90O (40K)’;
if(fieldname3 <=139) return ’90P (40KK)’;
}
else if(fieldname2 <= 110)
{
if(fieldname3 <107) return ’95A (42A)’;
if(fieldname3 <=109) return ’95B (42B)’;
if(fieldname3 <112) return ’95C (42C)’;
if(fieldname3 <=114) return ’95D (42D)’;
if(fieldname3 <117) return ’95E (42DD)’;
if(fieldname3 <=119) return ’95F (42E)’;
if(fieldname3 <122) return ’95G (42F)’;
if(fieldname3 <=124) return ’95H (42FF)’;
if(fieldname3 <127) return ’95I (42G)’;
if(fieldname3 <=129) return ’95J (42GG)’;
if(fieldname3 <132) return ’95K (42H)’;
if(fieldname3 <=134) return ’95L (42HH)’;
if(fieldname3 <137) return ’95M (42J)’;
if(fieldname3 <=139) return ’95N (42JJ)’;
if(fieldname3 <142) return ’95O (42K)’;
if(fieldname3 <=144) return ’95P (42KK)’;
}
else if(fieldname2 <= 115)
{
if(fieldname3 <112) return ‘100A (44A)’;
if(fieldname3 <=114) return ‘100B (44B)’;
if(fieldname3 <117) return ‘100C (44C)’;
if(fieldname3 <=119) return ‘100D (44D)’;
if(fieldname3 <122) return ‘100E (44DD)’;
if(fieldname3 <=124) return ‘100F (44E)’;
if(fieldname3 <127) return ‘100G (44F)’;
if(fieldname3 <=129) return ‘100H (44FF)’;
if(fieldname3 <132) return ‘100I (44G)’;
if(fieldname3 <=134) return ‘100J (44GG)’;
if(fieldname3 <137) return ‘100K (44H)’;
if(fieldname3 <=139) return ‘100L (44HH)’;
if(fieldname3 <142) return ‘100M (44J)’;
if(fieldname3 <=144) return ‘100N (44JJ)’;
if(fieldname3 <147) return ‘100O (44K)’;
if(fieldname3 <=149) return ‘100P (44KK)’;
}
else if(fieldname2 <= 120)
{
if(fieldname3 <117) return ‘105A (46A)’;
if(fieldname3 <=119) return ‘105B (46B)’;
if(fieldname3 <122) return ‘105C (46C)’;
if(fieldname3 <=124) return ‘105D (46D)’;
if(fieldname3 <127) return ‘105E (46DD)’;
if(fieldname3 <=129) return ‘105F (46E)’;
if(fieldname3 <132) return ‘105G (46F)’;
if(fieldname3 <=134) return ‘105H (46FF)’;
if(fieldname3 <137) return ‘105I (46G)’;
if(fieldname3 <=139) return ‘105J (46GG)’;
if(fieldname3 <142) return ‘105K (46H)’;
if(fieldname3 <=144) return ‘105L (46HH)’;
if(fieldname3 <147) return ‘105M (46J)’;
if(fieldname3 <=149) return ‘105N (46JJ)’;
if(fieldname3 <152) return ‘105O (46K)’;
if(fieldname3 <=154) return ‘105P (46KK)’;
}
else if(fieldname2 <= 125)
{
if(fieldname3 <122) return ‘110A (48A)’;
if(fieldname3 <=124) return ‘110B (48B)’;
if(fieldname3 <127) return ‘110C (48C)’;
if(fieldname3 <=129) return ‘110D (48D)’;
if(fieldname3 <132) return ‘110E (48DD)’;
if(fieldname3 <=134) return ‘110F (48E)’;
if(fieldname3 <137) return ‘110G (48F)’;
if(fieldname3 <=139) return ‘110H (48FF)’;
if(fieldname3 <142) return ‘110I (48G)’;
if(fieldname3 <=144) return ‘110J (48GG)’;
if(fieldname3 <147) return ‘110K (48H)’;
if(fieldname3 <=149) return ‘110L (48HH)’;
if(fieldname3 <152) return ‘110M (48J)’;
if(fieldname3 <=154) return ‘110N (48JJ)’;
if(fieldname3 <157) return ‘110O (48K)’;
if(fieldname3 <=159) return ‘110P (48KK)’;
}
return ‘Rozmiar nie istnieje’;
})()
Plugin Author codepeople
(@codepeople)

9 months, 1 week ago
Hello @maxflexpl

If the F2(fieldname2)=122 the following condition would be satisfied:
```
else if(fieldname2 <= 125)
```
because 122 is lesser than 125, and if F3(fieldname3)=69, the following condition would be satisfied:
```
if(fieldname3 <122) return '110A (48A)';
```
because 69 is lesser than 122. So, both conditions are satisfied, and the equation’s result would be: 110A (48A)
and that’s correct.

Best regards.
- This reply was modified 9 months, 1 week ago by codepeople.
maxflexpl
(@maxflexpl)

9 months, 1 week ago

Hi @codepeople 🙂

What if wanna add an additional condition in inf function for Fieldname3. Like –
add two conditions for a range of numbers (from, to).

Is the following formula will be correct?

else if(fieldname2 <= 125)
{
if(fieldname3 >=119 && <122) return ‘110A (48A)’;

}
Plugin Author codepeople
(@codepeople)

9 months, 1 week ago
Hello @maxflexpl

If you need to create a condition that checks if the field is in a range, it would be:
```
if(119<=fieldname3 && fieldname3 <122) return '110A (48A)';
```
Best regards.
maxflexpl
(@maxflexpl)

9 months, 1 week ago

@codepeople – You ARE the MASTER!!!! 🙂 Thank You 😀 Thank You 🙂
maxflexpl
(@maxflexpl)

9 months, 1 week ago
Hi @codepeople 🙂
One question about function for ‘Invalid conditions’. Is there a possibility that ‘Invalid conditions’ shows only when value in F1 and F2 is put, not only in F1 or F2?
```
(function(){
    var f1 = fieldname1, f2 = fieldname2;

    if(f1 <= 67)
    {
        if(f2 <=72) return '60A';
        if(f2 <=74) return '60B';
        if(f2 <=77) return '60C';
    }
    else if(f1 <= 73)
    {
        if(f2 <=74) return '65A';
        if(f2 <=77) return '65B';
    }
    else if(f1 <= 80)
    {
         if(f2 <=77) return '70A';
         if(f2 <=79) return '70B';
    }
    return 'Invalid conditions';
})()
```
Plugin Author codepeople
(@codepeople)

9 months, 1 week ago
Hello @maxflexpl

Yes of course, you simply should to edit the equation as follows:
```
(function(){
    var f1 = fieldname1, f2 = fieldname2;

    if(f1 <= 67)
    {
        if(f2 <=72) return '60A';
        if(f2 <=74) return '60B';
        if(f2 <=77) return '60C';
    }
    else if(f1 <= 73)
    {
        if(f2 <=74) return '65A';
        if(f2 <=77) return '65B';
    }
    else if(f1 <= 80)
    {
         if(f2 <=77) return '70A';
         if(f2 <=79) return '70B';
    }
    if(f1 && f2) return 'Invalid conditions';
})()
```
Best regards.
maxflexpl
(@maxflexpl)

9 months, 1 week ago

@codepeople – you are my savior 🙂
Again big, big thank you! 🙂

_______________________________

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