Algorithms added

Algorithms/BMI.js

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+function BMI(mass, height) {
+ let BMI = mass / height ** 2;
+ console.log('Your Body Mass Index: ' + BMI);
+
+ if (BMI < 17)
+ console.log('Very underweight');
+ else if (BMI < 18.5)
+ console.log('Underweight');
+ else if (BMI < 25)
+ console.log('Normal weight');
+ else if (BMI < 30)
+ console.log('Overweight');
+ else if (BMI < 35)
+ console.log('obesity I');
+ else if (BMI < 40)
+ console.log('obesity II (Several)');
+ else
+ console.log('obesity III (Morbid)');
+}
+
+(function main() {
+BMI(63, 1.71);
+BMI(73, 1.72);
+BMI(83, 1.73);
+BMI(93, 1.74);
+})();

Algorithms/binarySystem.js

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+class binarySystem {
+convertToBinary(text = '') {
+let final = '';
+for (let i = 0; i < text.length; i++) {
+let binary = '', result = '', number = text.charCodeAt(i);
+
+while (number != 0) {
+binary += number % 2;
+number /= 2;
+number = parseInt(number);
+}
+
+let length = binary.length;
+if (length < 8)
+for (let i = 0; i < 8 - length; i++)
+binary += '0';
+
+for (let i = binary.length - 1; i >= 0; i--)
+result += binary[i];
+
+final += result + ' ';
+}
+
+return final.trim();
+}
+
+convertToText(binary = '') {
+let text = [], binaryCode = binary.split(' ');
+for (let i = 0; i < binaryCode.length; i++) {
+let qtd = 0, atual = 0;
+for (let j = binaryCode[i].length - 1; j >= 0; j--) {
+if (binaryCode[i][j] == '1')
+qtd += 2 ** atual;
+atual++;
+}
+
+text.push(qtd);
+}
+
+return String.fromCharCode(...text);
+}
+}
+
+let system = new binarySystem();
+
+(function main() {
+system.convertToBinary('Algorithm');
+system.convertToText('01000001 01101100 01100111 01101111 01110010 01101001 01110100 01101000 01101101');
+})();

Algorithms/binarySystemMinimal.js

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+class binarySystemMinimal {
+convertToBinary(text) {	console.log(text.split('').map(letter => letter.charCodeAt(0).toString(2)).join(' ')); }
+convertToText(binary) {	console.log(binary.split(' ').map(binaryCode => String.fromCharCode(parseInt(binaryCode, 2))).join('')); }
+}
+
+let systemMinimal = new binarySystemMinimal();
+
+(function main() {
+systemMinimal.convertToBinary('Lucas');
+systemMinimal.convertToText('1001100 1110101 1100011 1100001 1110011');
+})();

Algorithms/primeNumbers.js

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+function primeNumber(number) {
+let qtdDiv = 0;
+for (let i = number; i > 0; i--)
+if (number % i == 0)
+qtdDiv++;
+
+return qtdDiv == 2 ? "It's a Prime number!" : 'Not is a prime number!';
+}
+
+(function main() {
+console.log(primeNumber(5));
+console.log(primeNumber(6));
+console.log(primeNumber(7));
+console.log(primeNumber(8));
+})();

Algorithms/reverseString.js

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+function stringInvert(str) {
+ let strInverted = '';
+ for (let i = str.trim().length - 1; i >= 0; i--)
+ strInverted += str.trim()[i];
+
+ console.log('Inverted text: ' + strInverted);
+}
+
+(function main() {
+stringInvert('Algorithm');
+stringInvert('mhtiroglA');
+})();