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valdi

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valdi

Input validation with configured, custom 'valid' patterns definitions (pre-ES6 version).

latest

Source

npm

Version: 0.0.374

Version published: 9 years ago

Maintainers: 2

Created: 9 years ago

Source

valdi

Input validation with configured, custom 'valid' patterns definitions - for ES6 version check valdi-es6.

Current version

Version	Published	By	URL
0.0.374	2017-03-27	`codebloke`	npm

In order to install please run in your project path:

npm install --save valdi

Simple assertions (multiple conditions with AND)

var Valdi = require('valdi');

var ww1 = Valdi.simple.new('WW1').integer().greaterThan(1913).lessThan(1919);

console.log(ww1.value(1918));
console.log(ww1.value(2000));
console.log(ww1.value(1900));

shows following output:

true
false
false

More complex assertions (multiple conditions with OR/AND)

var Valdi = require('valdi');

var ww1 = Valdi.simple.new('WW1').integer().greaterThan(1913).lessThan(1919),
    ww2 = Valdi.simple.new('WW2').integer().greaterThan(1938).lessThan(1946);

console.log(
    Valdi.expression.factory().setOperator('OR')
        .add('WW1', ww1.value(1944))
        .add('WW2', ww2.value(1944))
        .result()
);
console.log(
    Valdi.expression.factory().setOperator('OR')
        .add('WW1', ww1.value(1984))
        .add('WW2', ww2.value(1984))
        .result()
);

shows following output:

true
false

Simpler approach to OR cases

var War = Valdi.simple.new()
            .or().inList('1914,1915,1916,1917,1918')
            .inList('1939,1940,1941,1942,1943,1944,1945');

console.log(War.value(1905));
console.log(War.value(1918));
console.log(War.value('ABC'));
console.log(War.value(1944));
console.log(War.value('Make peace not war'));

outputs following:

false
true
true
false
true
true
false

more about this approach here.

Other examples

Using whitelists and blacklists

The example above can be asserted with a simple whitelist scenario that makes the code much neater (@spooky-monkey):

// include module in your project
var Valdi = require('valdi');

Whitelist provided in native Array

// include module in your project
var warYear = Valdi.simple.new('WW1 & WW2 years via native Array')
        .integer().inList([1914, 
                           1915, 
                           1916, 
                           1917, 
                           1918, 
                           1939, 
                           1940, 
                           1941, 
                           1942, 
                           1943, 
                           1944, 
                           1945]);

console.log(warYear.desc);
console.log(warYear.value(1944));
console.log(warYear.value(1984));

// true
// false

Whitelist provided in JSON string

// include module in your project
var warYearJson = Valdi.simple.new('WW1 & WW2 years with whitelist in JSON')
        .integer().inList('[1914, 1915, 1916, 1917, 1918, 1939, 1940, 1941, 1942, 1943, 1944, 1945]');

console.log(warYearJson.desc);
console.log(warYearJson.value(1944));
console.log(warYearJson.value(1984));

// true
// false

Whitelist provided in simple CSV string

// include module in your project
var warYearCsv = Valdi.simple.new('WW1 & WW2 years with whitelist in CSV')
        .integer().inList('1914,1915,1916,1917,1918,1939,1940,1941,1942,1943,1944,1945');

console.log(warYearCsv.desc);
console.log(warYearCsv.value(1944));
console.log(warYearCsv.value(1984));

// true
// false

Whitelist provided in CSV string with double-quote delimiter

// include module in your project
var warYearCsv2 = Valdi.simple.new(
    'WW1 & WW2 years with whitelist in CSV w. doublequote delimiters'
    ).integer().inList(
        '"1914","1915","1916","1917","1918","1939","1940","1941","1942","1943","1944","1945"'
    );

console.log(warYearCsv2.desc);
console.log(warYearCsv2.value(1944));
console.log(warYearCsv2.value(1984));

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Simple assertions

Please note:

Simple is providing only conjuntions (assertions joined by AND only)!

Including Valdi in your project

var Valdi = require('valdi'),
    simple = Valdi.simple;    // simple validators all rules in conjunction (AND)

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Methods chain simple.number().value();

console.log( simple.new('A number').number().value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A number').number().value('ABC') );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A number').number().value('') );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A number').number().value({ obj: true }) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A number').number().value(1234) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number').number().value(10.11) );
console.log( 'expected: true' ); 
console.log( '' );

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Methods chain simple.numberAsString().value()

console.log( simple.new('A number as string').numberAsString().value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A number as string').numberAsString().value('67.14') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number as string').numberAsString().value('334567') );
console.log( 'expected: true' ); 
console.log( '' );

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Methods chain simple.integer().value()

console.log( simple.new('An integer').integer().value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('An integer').integer().value(14.56) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('An integer').integer().value(1234) );
console.log( 'expected: true' ); 
console.log( '' );

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Methods chain simple.integer() .min() .max()

console.log( simple.new('An integer with min').integer().min(23).value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('An integer with min').integer().min(23).value(100) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('An integer with min').integer().min(123).value(100) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('An integer with max').integer().max(23).value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('An integer with max').integer().max(23).value(22) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('An integer with max').integer().max(23).value(55) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('An integer with max & max').integer().min(5).max(15).value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('An integer with max & max').integer().min(5).max(15).value(14) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('An integer with max & max').integer().min(5).max(15).value(-1) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('An integer with max & max').integer().min(5).max(15).value(16) );
console.log( 'expected: false' ); 
console.log( '' );

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Methods chain ...integerAsString()

console.log( simple.new('An integer as string').integerAsString().value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('An integer as string').integerAsString().value('2345') );
console.log( 'expected: true' ); 
console.log( '' );

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Methods chain ...real()

console.log( simple.new('A real number').real().value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A real number').real().value(2.15) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A real number').real().value('2.56') );
console.log( 'expected: false' ); 
console.log( '' );

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Methods chain ...realAsString()

console.log( simple.new('A real number as string').realAsString().value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A real number as string').realAsString().value('3.14') );
console.log( 'expected: true' ); 
console.log( '' );

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Methods chain ...bool()

console.log( simple.new('A bool').bool().value(false) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A bool').bool().value(true) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A bool').bool().value(null) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A bool').bool().value({ obj: true }) );
console.log( 'expected: false' ); 
console.log( '' );

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Methods chain ..null()

console.log( simple.new('A null').null().value(null) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A null').null().value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A null').null().value({ obj: true}) );
console.log( 'expected: false' ); 
console.log( '' );

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Methods chain ..validLocale()

console.log( simple.new('A valid locale').validLocale().value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A valid locale').validLocale().value('en') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A valid locale').validLocale().value('ar') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A valid locale').validLocale().value('ja') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A valid locale').validLocale().value('de') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A valid locale').validLocale().value('invalid') );
console.log( 'expected: false' ); 
console.log( '' );

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Methods chain ..string()

console.log( simple.new('A string value').string().value('false') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A string value').string().value({ obj: true }) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A string value').string().value(112.33) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A string value').string().value('Valid string') );
console.log( 'expected: true' ); 
console.log( '' );

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Methods chain ...email()

console.log( simple.new('An email').string().value('martin.swiderski@gmail.com') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('An email').string().value('spooks@8ig.uk') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('An email').string().value(false) );
console.log( 'expected: false' ); 
console.log( '' );

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Methods chain ...emptyString()

console.log( simple.new('An empty string').emptyString().value('martin.swiderski@gmail.com') );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('An empty string').emptyString().value('') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('An empty string').emptyString().value(false) );
console.log( 'expected: false' ); 
console.log( '' );

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Methods chain ...number().greaterThan()

console.log( simple.new('A number greater than').number().greaterThan(100).value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A number greater than').number().greaterThan(100).value(101) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number greater than').number().greaterThan(2).value(1) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A number greater than').number().greaterThan(25).value(32) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number greater than').number().greaterThan(25).value(32) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number greater than').integer(true).greaterThan(25).value('32') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number greater than').real(true).greaterThan(1.3).value(2.1) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number greater than').real(true).greaterThan(15.1).value(30.1) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number greater than').real(true).greaterThan('1.3').value('2.1') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number greater than').real(true).greaterThan('15.1').value('30.1') );
console.log( 'expected: true' ); 
console.log( '' );

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Methods chain ....number().lessThan()

console.log( simple.new('A number less than').number().lessThan(100).value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A number less than').number().lessThan(100).value(78) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number less than').number().lessThan('748').value(200) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number less than').number().lessThan(55).value(3) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number less than').number().lessThan(11).value(71) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A number less than').number(true).lessThan('11').value('7') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number less than').integer(true).lessThan('11').value('71') );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('A number less than').real(true).lessThan('10.56').value('10.1') );
console.log( 'expected: false' ); 
console.log( '' );

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Methods chain ...equal()

console.log( simple.new('A number equal').number().equal(100).value(100) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number equal').number().equal(100).value(100.00) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A string equal').string().equal('ABC').value('ABC') );
console.log( 'expected: true' ); 
console.log( '' );

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Methods chain ...notEqual()

console.log( simple.new('A number not equal').number().notEqual(123).value(100) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A number not equal').number().notEqual(99).value(100.00) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('A string not equal').string().notEqual('AXC').value('ABC') );
console.log( 'expected: true' ); 
console.log( '' );

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Methods chain ..arrayAsString()

console.log( simple.new('Array as string')
                .string().arrayAsString().value('["8.8.8.8","2001:4860:4860::8888","2001:4860:4860::8844"]') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Array as string')
                .string().arrayAsString().value('"8.8.8.8","2001:4860:4860::8888","2001:4860:4860::8844"') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Array as string')
                .string().arrayAsString().value('8.8.8.8,2001:4860:4860::8888,2001:4860:4860::8844') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Array as string')
                .string().arrayAsString().value('8.8.8.8,2001:4860:4860::8888,2001:4860:4860::8844') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Array as string')
                .string().arrayAsString().value(false) );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('Array as string')
                .string().arrayAsString().value([1, 2,3]) );
console.log( 'expected: false' ); 
console.log( '' );

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URL

console.log( simple.new('Valid URL')
                .string().url().value('http://cecpvmlx080.internal.boo.net:8055/') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Invalid URL')
                .string().url().value('GaHssDGHDGghwsgyw') );
console.log( 'expected: false' ); 
console.log( '' );

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base64

console.log( simple.new('Valid Base64').string().base64().value('aGVyZSB3ZSBjb21lIGFnYWlu') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Invalid Base64').string().base64().value('GaHssDGHDGghwsgyw') );
console.log( 'expected: false' ); 
console.log( '' );

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ipv4

console.log( simple.new('Valid IPv4').string().ipv4().value('10.10.1.1') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Invalid IPv4').string().ipv4().value('GaHssDGHDGghwsgyw') );
console.log( 'expected: false' ); 
console.log( '' );

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ipv5

console.log( simple.new('Valid IPv6').string().ipv6().value('2001:4860:4860::8888') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Invalid IPv6').string().ipv6().value('GaHssDGHDGghwsgyw') );
console.log( 'expected: false' ); 
console.log( '' );

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alphanumeric

console.log( simple.new('Valid Alphanum')
                .string().alphanumeric('xx').value('2001:4860:4860::8888') );
console.log( 'expected: false' ); 
console.log( '' );
console.log( simple.new('Valid Alphanum')
                .string().alphanumeric('en').value('Christopher Marlowe\'s 0123456789'));
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Valid Alphanum')
                .string().alphanumeric('de')
                .value('Gebhard-Leberecht von Blücher Fürst von Wahlstatt 0123456789') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Valid Alphanum')
                .string().alphanumeric('fr').value('AntoineDeSaint-Exupéry0123456789') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Valid Alphanum')
                .string().alphanumeric('ja').value('宮本武蔵 0123456789') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Valid Alphanum')
                .string().alphanumeric('ar').value('صلاحالدينيوسفبنأيوب0123456789') );
console.log( 'expected: true' ); 
console.log( '' );

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regexMatch

console.log( simple.new('Valid Regex')
                .string().regexMatch(/^\w+$/).value('0123456789') );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Invalid Regex')
                .string().regexMatch(/^\w+$/).value('0123456789 (trigger regex false)') );
console.log( 'expected: false' ); 
console.log( '' );

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jsonString

console.log( simple.new('Valid JSON')
                .string().jsonString().value(JSON.stringify({this: 'is JSON'})) );
console.log( 'expected: true' ); 
console.log( '' );
console.log( simple.new('Invalid JSON')
                .string().jsonString().value('GaHssDGHDGghwsgyw') );
console.log( 'expected: false' ); 
console.log( '' );

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Using or() - more examples of OR

var War = Valdi.simple.new()
            .or().inList('1914,1915,1916,1917,1918')
            .inList('1939,1940,1941,1942,1943,1944,1945');

console.log(War.value(1905));
console.log(War.value(1918));
console.log(War.value('ABC'));
console.log(War.value(1944));
console.log(War.value('Make peace not war'));

this would give you:

false
true
true
false
true
true
false

« back to list

Keywords

FAQs

What is valdi?

Is valdi well maintained?

Package last updated on 27 Mar 2017

Did you know?

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Install

valdi

valdi

Current version

Simple assertions (multiple conditions with AND)

More complex assertions (multiple conditions with OR/AND)

Simpler approach to OR cases

Other examples

Using whitelists and blacklists

Whitelist provided in native Array

Whitelist provided in JSON string

Whitelist provided in simple CSV string

Whitelist provided in CSV string with double-quote delimiter

Simple assertions

Including Valdi in your project

Methods chain simple.number().value();

Methods chain simple.numberAsString().value()

Methods chain simple.integer().value()

Methods chain simple.integer() .min() .max()

Methods chain ...integerAsString()

Methods chain ...real()

Methods chain ...realAsString()

Methods chain ...bool()

Methods chain ..null()

Methods chain ..validLocale()

Methods chain ..string()

Methods chain ...email()

Methods chain ...emptyString()

Methods chain ...number().greaterThan()

Methods chain ....number().lessThan()

Methods chain ...equal()

Methods chain ...notEqual()

Methods chain ..arrayAsString()

URL

base64

ipv4

ipv5

alphanumeric

regexMatch

jsonString

Using or() - more examples of OR

Keywords

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