Skip to content

Commit 317a752

Browse files
author
dot.not
committed
Commit of code revision of Homework - week 3 - credit card number validation project
1 parent 9bde813 commit 317a752

1 file changed

Lines changed: 193 additions & 20 deletions

File tree

‎Week3/homework/js-exercises/project-ccn-validate.js‎

Lines changed: 193 additions & 20 deletions
Original file line numberDiff line numberDiff line change
@@ -2,34 +2,207 @@
22

33
/*
44
description PROJECT: Validate the number of a credit card based on specified ruleset
5+
code revision #6
56
*/
67

78
function runProjectccNumberValidator() {
9+
10+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
11+
// original submitted solution
12+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
13+
// console.log("= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =");
14+
// console.log("JS-1 - week 3 - PROJECT: Credit card number Validation");
15+
// console.log("Validate the number of a credit card based on specified ruleset");
16+
// console.log("- - - - - - - - - - - - - - - - - - - -");
17+
// //
18+
// // define the Credit card number validation routine
19+
// //
20+
// function isValidccNumber(ccNumber){
21+
// // transform to string and remove non-numeric characters
22+
// let ccNumStr=String(ccNumber).replace(/[^0-9]/g,'');
23+
// // put each character into an array element
24+
// let ccDigits=ccNumStr.split('');
25+
// // decide validity based on specified ruleset
26+
// return (ccNumStr.length==16)
27+
// && (ccNumStr.replace((new RegExp(ccNumStr[0],'g')),'').length>0)
28+
// && ((ccNumStr[15]%2)==0)
29+
// && (ccDigits.reduce((a,b)=>Number(a)+Number(b))>16);
30+
// }
31+
// let ccNumberList=[ '9999777788880000','6666666666661666',' 1234 - 5678 - 9012 - 3456 ',
32+
// 'a92332119c011112','4444444444444444',
33+
// '1111111111111110','6666666666666661',' 6543 - 2109 - 8765 - 4321 ' ];
34+
// for (let i=0; i<ccNumberList.length; i++){
35+
// console.log(`Based on the provided rulset, the Credit card number [${
36+
// ccNumberList[i]}] ${(isValidccNumber(ccNumberList[i])?'IS':'is NOT')} valid.`);
37+
// }
38+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
39+
40+
41+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
42+
// alternate solution with detailed reporting and complete ruleset evaluation
43+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
44+
// function isValidccNumber(ccNumber){
45+
// // transform into string and remove all spaces
46+
// let ccNumStr=String(ccNumber).replace(/\s+/g,'');
47+
// // define validity ruleset based on specifications
48+
// let ruleset={
49+
// is_exactly_16_digits_long :(ccNumStr.length==16),
50+
// contains_only_numeric_digits :(ccNumStr===String(ccNumber).replace(/[^0-9]/g,'')),
51+
// not_all_the_digits_are_same :(ccNumStr.replace((new RegExp(ccNumStr[0],'g')),'').length>0),
52+
// last_digit_is_even :(ccNumStr[ccNumStr.length-1]%2==0),
53+
// digit_checksum_greater_than_16:(ccNumStr.split('').reduce((a,b)=>Number(a)+Number(b))>16),
54+
// };
55+
// console.log(" ");
56+
// console.log(`Checking the validity of Credit card number [${ccNumber}] -> [${ccNumStr}]`);
57+
// let fResult=true;
58+
// Object.keys(ruleset).forEach(keyName=>{
59+
// // detailed log of functionality
60+
// console.log(` ${keyName.replace(/_+/g,' ')}${' '.repeat(
61+
// 35-keyName.length)}[${ruleset[keyName]}]`);
62+
// // decide validity based on specified ruleset
63+
// fResult=fResult&&ruleset[keyName];
64+
// });
65+
// return fResult;
66+
// }
67+
// [ '9999777788880000',6666666666661666,' 1234 - 5678 - 9012 - 3456 ',' 1234 5678 9012 3456 ',
68+
// 'a92332119c011112','4444444444444444',' a6543 b2109 c8765 d1234 ',
69+
// '1111111111111110',6666666666666661,' 6543 - 2109 - 8765 - 4321 ' ]
70+
// .forEach(lmnt=>console.log(`Based on the provided rulset, the Credit card number [${
71+
// lmnt}] ${(isValidccNumber(lmnt)?'IS':'is NOT')} valid.`));
72+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
73+
74+
75+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
76+
// alternate solution with detailed reporting and partial ruleset evaluation
77+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
78+
// function isValidccNumber(ccNumber){
79+
// // transform into string and remove all spaces
80+
// let ccNumStr=String(ccNumber).replace(/\s+/g,'');
81+
// // define validity ruleset based on specifications
82+
// let ruleset={
83+
// is_exactly_16_digits_long :(ccNumStr.length==16),
84+
// contains_only_numeric_digits :(ccNumStr===String(ccNumber).replace(/[^0-9]/g,'')),
85+
// not_all_the_digits_are_same :(ccNumStr.replace((new RegExp(ccNumStr[0],'g')),'').length>0),
86+
// last_digit_is_even :(ccNumStr[ccNumStr.length-1]%2==0),
87+
// digit_checksum_greater_than_16:(ccNumStr.split('').reduce((a,b)=>Number(a)+Number(b))>16),
88+
// };
89+
// console.log(" ");
90+
// console.log(`Checking the validity of Credit card number [${ccNumber}] -> [${ccNumStr}]`);
91+
// return Object.keys(ruleset).every(keyName=>{
92+
// // detailed log of functionality
93+
// console.log(` ${keyName.replace(/_+/g,' ')}${' '.repeat(
94+
// 35-keyName.length)}[${ruleset[keyName]}]`);
95+
// // decide validity based on specified ruleset
96+
// return ruleset[keyName];
97+
// });
98+
// }
99+
// [ '9999777788880000',6666666666661666,' 1234 - 5678 - 9012 - 3456 ',' 1234 5678 9012 3456 ',
100+
// 'a92332119c011112','4444444444444444',' a6543 b2109 c8765 d1234 ',
101+
// '1111111111111110',6666666666666661,' 6543 - 2109 - 8765 - 4321 ' ]
102+
// .forEach(lmnt=>console.log(`Based on the provided rulset, the Credit card number [${
103+
// lmnt}] ${(isValidccNumber(lmnt)?'IS':'is NOT')} valid.`));
104+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
105+
106+
107+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
108+
// replaced with following alternative validation method + alternative data setup & calling
109+
// evaluation is still partial, meaning at the 1st invalid step the number is ruled invalid
110+
// this is code revision #4
111+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
112+
//
113+
// console.log("= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =");
114+
// console.log("JS-1 - week 3 - PROJECT: Credit card number Validation");
115+
// console.log("Validate the number of a credit card based on specified ruleset");
116+
// console.log("- - - - - - - - - - - - - - - - - - - -");
117+
// //
118+
// // define the Credit card number validation routine
119+
// //
120+
// function isValidccNumber(ccNumber){
121+
// // transform into string and remove all spaces
122+
// let ccNumStr=String(ccNumber).replace(/\s+/g,'');
123+
// // define validity ruleset - based on specifications
124+
// let ruleset={
125+
// ccnumber_is_exactly_16_digits_long
126+
// :(ccNumStr.length==16),
127+
// contains_only_numeric_digits
128+
// :(ccNumStr===String(ccNumber).replace(/[^0-9]/g,'')),
129+
// not_all_the_digits_are_same
130+
// :(ccNumStr.replace((new RegExp(ccNumStr[0],'g')),'').length>0),
131+
// the_last_digit_is_even
132+
// :(ccNumStr[ccNumStr.length-1]%2==0),
133+
// has_checksum_greater_than_16
134+
// :(ccNumStr.split('').reduce((a,b)=>Number(a)+Number(b))>16),
135+
// };
136+
// // decide and return validity - based on specified ruleset
137+
// return Object.keys(ruleset).every(keyName=>ruleset[keyName]});
138+
// }
139+
// //
140+
// // call the function to validate each credit card number from the following array
141+
// //
142+
// [ '9999777788880000', 6666666666661666, ' 1234 5678 9012 3456 ',
143+
// ' 1234 - 5678 - 9012 - 3456 ', 'a92332119c011112', '4444444444444444',
144+
// ' a6543 b2109 c8765 d1234 ', '1111111111111110', 6666666666666661,
145+
// ].forEach(lmnt=>console.log(`Based on the provided rulset, the Credit card number [${
146+
// lmnt}] ${(isValidccNumber(lmnt)?'IS':'is NOT')} valid.`));
147+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
148+
149+
150+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
151+
// missing code revision #5
152+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
153+
154+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
155+
// current code revision ( #6 )
156+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
8157
console.log("= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =");
9158
console.log("JS-1 - week 3 - PROJECT: Credit card number Validation");
10-
console.log("Validate the number of a credit card based on specified ruleset");
159+
console.log("Validate the number of a credit card based on specified ruleset (code revision #6)");
11160
console.log("- - - - - - - - - - - - - - - - - - - -");
12-
//
13-
// define the Credit card number validation routine
14-
//
161+
// define the Credit card number validation routine
15162
function isValidccNumber(ccNumber){
16-
// transform to string and remove non-numeric characters
17-
let ccNumStr=String(ccNumber).replace(/[^0-9]/g,'');
18-
// put each character into an array element
19-
let ccDigits=ccNumStr.split('');
20-
// decide validity based on specified ruleset
21-
return (ccNumStr.length==16)
22-
&& (ccNumStr.replace((new RegExp(ccNumStr[0],'g')),'').length>0)
23-
&& ((ccNumStr[15]%2)==0)
24-
&& (ccDigits.reduce((a,b)=>Number(a)+Number(b))>16);
25-
}
26-
let ccNumberList=[ '9999777788880000','6666666666661666',' 1234 - 5678 - 9012 - 3456 ',
27-
'a92332119c011112','4444444444444444',
28-
'1111111111111110','6666666666666661',' 6543 - 2109 - 8765 - 4321 ' ];
29-
for (let i=0; i<ccNumberList.length; i++){
30-
console.log(`Based on the provided rulset, the Credit card number [${
31-
ccNumberList[i]}] ${(isValidccNumber(ccNumberList[i])?'IS':'is NOT')} valid.`);
163+
// define number validation ruleset - based on specifications
164+
let ccNumberValidationRules={
165+
The_number_should_be_Exactly_16_digits_long
166+
:()=>ccNumberString.length==16,
167+
The_number_should_consist_of_16_Numeric_digits
168+
:()=>ccNumberString===String(ccNumber).replace(/[^0-9]/g,''),
169+
The_number_should_have_at_least_2_Diferent_digits
170+
:()=>ccNumberString.replace((new RegExp(ccNumberString[0],'g')),'').length>0,
171+
The_last_digit_of_the_number_should_be_Even
172+
:()=>ccNumberString[ccNumberString.length-1]%2==0,
173+
The_number_should_have_digit_Checksum_greater_than_16
174+
:()=>ccNumberString.split('').reduce((a,b)=>Number(a)+Number(b))>16,
175+
};
176+
// transform the parameter into new string and remove blank spaces
177+
let ccNumberString=String(ccNumber).replace(/\s+/g,'');
178+
console.log(' ');
179+
// logout the credit card number under inspection
180+
console.log(`Validation of credit card number [${ccNumber
181+
}] - converted to [${ccNumberString}]`);
182+
// decide number validity - check against every rule in sequece
183+
let validationResult=Object.keys(ccNumberValidationRules).every(currentRule=>{
184+
let currentResult=ccNumberValidationRules[currentRule]();
185+
// on false: report reason the number is not passing this rule
186+
// since every() will terminate (partial boolean evaluation)
187+
if (!currentResult) {console.log('Number is INVALID due to rule conflict: '
188+
+currentRule.replace(/_+/g,' ')+'.')};
189+
return currentResult;
190+
});
191+
// finally, if card is valid, report so before leaving routine
192+
if (validationResult) {console.log(`This is a VALID credit card number.`)};
193+
// return number validation result
194+
return validationResult;
32195
}
196+
// validate each credit card number from the following array
197+
[ ' 1234 - 5678 - 9012 - 3456 ', ' 1234 5678 9012 3456 ',
198+
'a92332119c011112', '0000777788880000',
199+
4444444444444444, 6666666666661666,
200+
' 006 543 210 987 651 234 ', ' 0012 3456 7890 1234 ',
201+
'1111111111111110', 3111111111111110,
202+
6666666666666661, 1111111111111116
203+
].forEach(lmnt=>isValidccNumber(lmnt));
204+
// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
205+
33206
console.log("= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =");
34207
console.log(" ");
35208
};

0 commit comments

Comments
 (0)