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index.js
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index.js
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//Random.js
//version 1.0;
//created by Hassan Jehjah (h is pronounced);
const getRandom = {
//get a random number from a range you define;
number: function( min = 0, max = 1000 /*Number.MAX_SAFE_INTEGER*/ ) {
if ( min >= 0 && max > min ) {
return Math.floor( Math.floor( min ) + ( Math.floor( Math.random() * ( ( Math.floor( max + 1 ) ) - Math.floor( min ) ) ) ) );
} else if ( min < 0 && max > min ) {
return Math.floor(Math.floor( min ) + ( Math.floor( Math.random() * ( ( Math.floor( max + 1 ) ) - Math.floor( min ) ) ) ) );
} else if ( max < min ) {
console.error(`the minimum number is smaller than maximum number!`)
};
},
//get random element from an array:
element: function( array, min = 0, max = ( array.length - 1 ) ) {
if ( Array.isArray( array ) ) {
if ( ( min >= 0 && min < array.length - 1 && min <= max ) && ( max >= 0 && max <= array.length - 1 && max >= min ) ) {
let index = randomNumber( min, max );
return array[ index ];
} else {
console.error(
`
Make sure you follow the following rules: \n
1-The min, max number must be >= 0
2-The min, max number must be <= array.length
3-The min number must be <= max number
4-The max number must be >= min number
5-min, max are only integer
`
);
};
} else {
console.error(`${ array } is not an array!`);
};
},
//get a random key from an object
key: function( obj ) {
let array = Object.keys( obj );
if (Array.isArray(array)) {
let index = randomNumber( 0, array.length - 1 )
let randomIndex = array[ index ];
return `${ randomIndex }`;
} else {
console.error(`${array} is not an array!`);
};
},
//generate a random id;
id: function( length = 0 ) {
let alphabet = "abcdefghijklmnopqrstuvwxyz";
let numbers = "1234567890".split("");
let alphabetCap = alphabet.toUpperCase().split("");
let id = "";
for ( i = 0; i <= length; i++ ) {
threes = randomElement( alphabet.split("") ) + randomElement( numbers ) + randomElement( alphabetCap );
if ( i < length ) {
id += threes + "-";
} else if ( i === length ) {
id += threes;
};
};
return id;
},
//get random Password:
pass: function( length = 15, strong ) {
let alphabet = "abcdefghijklmnopqrstuvwxyz";
let numbers = "1234567890".split("");
let alphabetCap = alphabet.toUpperCase().split("");
let symbols = `!£$%^&-_*@?`.split("");
let collectionStrong = [ alphabet.split(""), numbers, alphabetCap, symbols ];
let collectionWeak = [ alphabet.split(""), numbers ];
let password = "";
if ( length < 8 ) {
console.error(`minimum length is 8`);
} else if ( length >= 8 ) {
mainLoop: for ( let i = 0; i <= length; i++ ) {
if ( strong === true ) {
if ( i === 0 ) {
password += "-@";
i += 2;
};
if ( i >= 2 && i < length - 3 ) {
secondLopp: for ( x = 0; x < length - 3; x++ ) {
if (i < length - 3) {
let list = randomElement( collectionStrong );
let letter = randomElement( list );
password += letter;
i += 1;
};
if ( i === length - 3 ) {
break secondLopp;
};
};
};
if ( i === length - 3 ) {
password += "-@-";
i += 3;
break mainLoop;
};
} else if ( strong === false ) {
if ( i === 0 ) {
password += "-@";
i += 2;
};
if ( i >= 2 && i < length - 3 ) {
secondLopp: for ( x = 0; x < length - 3; x++ ) {
if ( i < length - 3 ) {
let list = randomElement( collectionWeak );
let letter = randomElement( list );
password += letter;
i += 1;
};
if ( i === length - 3 ) {
break secondLopp;
};
};
};
if ( i === length - 3 ) {
password += "-@-";
i += 3;
break mainLoop;
};
};
};
};
return password;
},
//randomize an array => returns a randomized Set (will be fixed later);
radnomizeArray: function ( array ) {
let target = array;
let resultArray = [];
mainLoop:for ( i = 0; resultArray.length < target.length ; i++) {
if ( array.length === 0 ) {
break mainLoop;
} else {
if ( array.length === 1 ) {
resultArray.push( array[ 0 ] );
array.pop();
break mainLoop;
} else {
let element = randomElement( array );
if ( !( resultArray.includes( element ) ) ) {
resultArray.push( element );
array = array.filter( ( ele ) => ele !== element );
};
};
};
};
return resultArray;
},
};
module.exports.getRandom = getRandom;