day-6 complete

solutions/day-6/level1.js

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+// 1.question
+for (let i = 0; i < 10; i++){
+     //code
+}
+let i = 0;
+while (i < 10) {
+     //code
+     i++;
+}
+i = 0;
+do {
+     //cpde
+     i++;
+} while (i < 10)
+// 2.question
+for (let i = 10; i >= 0; i--){
+     //code
+}
+ i = 10;
+while (i >=0) {
+     //code
+     i--;
+}
+i = 10;
+do {
+     //cpde
+     i--;
+} while (i >= 0)
+// 3.question
+let n;
+for (i = 0; i < n; i++){
+     //code
+}
+// 4.question
+let str = '';
+for (i = 1; i < 8; i++){
+     for (let j = 1; j <=i; j++){
+          str+='#'
+     }
+     str += '\n';
+}
+console.log(str);
+// 5.question
+for (i = 0; i < 11; i++){
+     console.log(`${i} x ${i} = ${i*i}`);          
+}
+// 6.question
+for (i = 0; i < 11; i++){
+     console.log(`${i}  ${Math.pow(i,2)}  ${Math.pow(i,3)}`);          
+}
+// 7.question
+i = 0;
+while (i < 101) {
+     if (i % 2 == 0) {
+          console.log(i);
+     }
+     i++;
+}
+// 8.question
+i = 0;
+while (i < 101) {
+     if (i % 2 != 0) {
+          console.log(i);
+     }
+     i++;
+}
+// 9.question
+i = 0;
+while (i < 101) {
+     let count = 0;
+     for (j = i; j > 0; j--){
+          if (i % j == 0) {
+               count++;
+          }
+     }
+     if (count == 2) {
+          console.log(i);
+     }
+     i++;
+}
+// 10.question
+i = 0;
+let sum = 0;
+while (i < 101) {
+     sum += i;
+     i++;
+}
+console.log(`The sum of all numbers from 0 to 100 is ${sum}`);
+// 11.question
+i = 0;
+let evenSum = 0;
+while (i < 101) {
+     if (i % 2 == 0) {
+          evenSum += i;
+     }
+     i++;
+}
+let oddSum = sum-evenSum
+console.log(`The sum of all numbers from 0 to 100 is ${evenSum} . And the sum of all odds from 0 tp 100 is ${sum - evenSum}`);
+// 12.question
+let sums = [oddSum, evenSum];
+console.log(sums);
+// 13.question
+let rand = [];
+for (i = 0; i < 5; i++){
+     rand.push(Math.floor(Math.random() * 10));
+}
+console.log(rand);
+// 14.question
+let uniqueRand = [];
+for (i = 0; i < 5; i++){
+     let temp = Math.floor(Math.random() * 10);
+     while (uniqueRand.includes(temp)) {
+          temp = Math.floor(Math.random() * 10);
+     }
+     if (!uniqueRand.includes(temp)) {
+          uniqueRand.push(temp)
+     }
+}
+console.log(uniqueRand);
+// 15.question
+let code = '0123456789abcdefghijklnopqrstuvwxyz';
+let id = '';
+for (i = 0; i < 6; i++){
+     temp = Math.floor(Math.random() * code.length);
+     id += code[temp];
+}
+console.log(id);

solutions/day-6/level2.js

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+// 1.question
+let code = '0123456789abcdefghijklnopqrstuvwxyz';
+let id = '';
+let rand = Math.floor(Math.random() * code.length);
+for (let i = 0; i < rand; i++){
+     let rand = Math.floor(Math.random() * code.length);
+     id+=code[rand]
+}
+console.log(id);
+// 2.question
+let hexcode = '0123456789abcdef';
+let hex = '#';
+for (i = 0; i < 6; i++){
+     let rand = Math.floor(Math.random() * hexcode.length);
+     hex += hexcode[rand]; 
+}
+console.log(hex);
+// 3.question
+function rgb() {
+     return Math.floor(Math.random() * 255);
+}
+console.log(`rgb(${rgb()},${rgb()},${rgb()})`);
+// 4.question
+
+const countries = [
+     'Albania',
+     'Bolivia',
+     'Canada',
+     'Denmark',
+     'Ethiopia',
+     'Finland',
+     'Germany',
+     'Hungary',
+     'Ireland',
+     'Japan',
+     'Kenya'
+];
+let newCountries = [];
+for (const iterator of countries) {
+     newCountries.push(iterator.toUpperCase());
+}
+console.log(newCountries);
+// 5.question
+let countryLen = [];
+for (const iterator of countries) {
+     countryLen.push(iterator.length);
+}
+console.log(countryLen);
+// 6.question
+let newArr = [];
+for (const iterator of countries) {
+     let temp = []
+     temp.push(iterator);
+     temp.push(iterator.slice(0,3).toUpperCase());
+     temp.push(iterator.length);
+     newArr.push(temp);
+}
+console.log(newArr);
+// 7.question
+let conLand = [];
+for (const iterator of countries) {
+     if (iterator.includes('land')) {
+          conLand.push(iterator)
+     }
+}
+console.log(conLand);
+// 8.question
+let conIa = [];
+for (const iterator of countries) {
+     if (iterator.includes('ia')) {
+          conIa.push(iterator);
+     }
+}
+console.log(conIa);
+// 9.question
+let max = 0;
+let maxi = 0;
+for (let i = 0; i < countries.length; i++){
+     if (max < countries[i].length) {
+          max = countries[i].length;
+          maxi = i;
+     }
+}
+console.log(countries[maxi]);
+// 10.question
+let five = [];
+for (const iterator of countries) {
+     if (iterator.length == 5) {
+          five.push(iterator);
+     }
+}
+console.log(five);
+// 11.question
+const webTechs = [
+     'HTML',
+     'CSS',
+     'JavaScript',
+     'React',
+     'Redux',
+     'Node',
+     'MongoDB'
+];
+max = 0;
+maxi = 0;
+for (let i = 0; i < webTechs.length; i++){
+     if (max < webTechs[i].length) {
+          max = webTechs[i].length;
+          maxi = i;
+     }
+}
+console.log(webTechs[maxi]);
+// 12.question
+ newArr = [];
+for (const iterator of webTechs) {
+     let temp = []
+     temp.push(iterator);
+     temp.push(iterator.length);
+     newArr.push(temp);
+}
+console.log(newArr);
+// 13.question
+const mernStack = ['MongoDB', 'Express', 'React', 'Node']
+console.log(mernStack.join(','));
+// 14.question
+for (const iterator of webTechs) {
+     console.log(iterator);
+}
+// 15.question
+let fruits = ['banana', 'orange', 'mango', 'lemon'];
+let revFruit = [];
+for (i = fruits.length-1; i >=0;i--) {
+     revFruit.push(fruits[i]);
+}
+fruits = [...revFruit]
+console.log(fruits);
+// 16.question
+const fullStack = [
+     ['HTML', 'CSS', 'JS', 'React'],
+     ['Node', 'Express', 'MongoDB']
+];
+for (const iterator of fullStack) {
+     for (const i of iterator) {
+          console.log(i);
+     }
+}
+

solutions/day-6/level3.js

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+// 1.question
+const countries = [
+     'Albania',
+     'Bolivia',
+     'Canada',
+     'Denmark',
+     'Ethiopia',
+     'Finland',
+     'Germany',
+     'Hungary',
+     'Ireland',
+     'Japan',
+     'Kenya'
+];
+let contryCopy = [...countries];
+// 2.question
+let sortedCountires = countries.slice();
+sortedCountires.sort();
+console.log(sortedCountires);
+// 3.question
+const mernStack = ['MongoDB', 'Express', 'React', 'Node']
+const webTechs = [
+     'HTML',
+     'CSS',
+     'JavaScript',
+     'React',
+     'Redux',
+     'Node',
+     'MongoDB'
+];
+mernStack.sort();
+webTechs.sort();
+// 4.question and 6.question
+let conLand = [];
+for (const iterator of countries) {
+     if (iterator.includes('land')) {
+          conLand.push(iterator)
+     }
+}
+console.log(conLand);
+// 5.question and 7.question
+let max = 0;
+let maxi = 0;
+let high = []
+for (let i = 0; i < countries.length; i++){
+     if (max < countries[i].length) {
+          max = countries[i].length;
+          maxi = i;
+     }
+}
+high.push(countries[maxi]);
+console.log(high);
+// 8.question
+let newc = []
+for (const iterator of countries) {
+     if (iterator.length >= 2) {
+          newc.push(iterator)
+     }
+}
+console.log(newc);
+// 9.question
+newc = []
+countries.reverse();
+for (const iterator of countries) {
+     newc.push(iterator.toUpperCase())
+}
+console.log(newc);

solutions/day-6/tempCodeRunnerFile.js

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+1,2,3