new problems has been solved here

Author: shihabuddin-dev

C. Array/big-name.js

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+/* problem-19
+Find the friend with the biggest name.
+const names = ['rahim', 'robin', 'rafi', 'ron', 'rashed'];
+*/
+
+const names = ['rahim', 'robin', 'rafi', 'ron', 'rashed'];
+let bigName = names[0];
+for (let i = 0; i < names.length; i++) {
+    if (names[i].length > bigName.length) {
+        bigName = names[i];
+    }
+}
+console.log(bigName);

C. Array/height-number.js

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+/* Problem-17
+
+Find the height number in the array below.
+const numbers = [167, 190, 120, 165, 137];
+*/
+
+const numbers = [167, 190, 120, 165, 137];
+let maxNumber = numbers[0];
+for (let i = 0; i < numbers.length; i++) {
+    if (numbers[i] > maxNumber) {
+        maxNumber = numbers[i]
+    }
+}
+console.log("This is height Number = ", maxNumber);

C. Array/lowest-number.js

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+/* Problem-16
+
+Find the lowest number in the array below.
+const numbers = [167, 190, 120, 165, 137];
+*/
+
+const numbers = [167, 190, 120, 165, 137];
+let minNumber = numbers[0];
+for (let i = 0; i < numbers.length; i++) {
+    if (numbers[i] < minNumber) {
+        minNumber = numbers[i]
+    }
+}
+console.log("This is lowest Number = ", minNumber);

C. Array/small-name.js

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+/* problem-18
+Find the friend with the smallest name.
+const names = ['rahim', 'robin', 'rafi', 'ron', 'rashed'];
+*/
+const names = ['rahim', 'robin', 'rafi', 'ron', 'rashed'];
+let shortName = names[0];
+for (let i = 0; i < names.length; i++) {
+    if (names[i].length < shortName.length) {
+        shortName = names[i]
+    }
+}
+console.log(shortName);

D. Loop/Array-loop/even-number.js

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+/* Problem-2
+
+Write a JavaScript code to get the even numbers from an array using any looping technique.
+
+Input: const numbers = [12, 98, 5, 41, 23, 78, 46];
+
+Output: [12, 98, 76, 46]
+*/
+
+
+const numbers = [12, 98, 5, 41, 23, 78, 46];
+
+// Solution-1 by using for loop 
+let evenNum = [];
+for (let i = 0; i < numbers.length; i++) {
+    if (numbers[i] % 2 === 0) {
+        evenNum.push(numbers[i]);
+    }
+}
+console.log(evenNum);
+
+
+// Solution-2 by using While loop
+let evenNumbers = [];
+let j = 0;
+while (j < numbers.length) {
+    if (numbers[j] % 2 === 0) {
+        evenNumbers.push(numbers[j]);
+
+    }
+    j++;
+}
+console.log(evenNumbers);

D. Loop/Array-loop/single-string.js

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+/* Problem-3
+
+Use a for...of loop to concatenate all the elements of an array into a single string.
+
+Input: let names = ['Tom', 'Tim', 'Tin', 'Tik']
+
+Output: 'TomTimTinTik'
+*/
+
+let names = ['Tom', 'Tim', 'Tin', 'Tik'];
+
+// Solution-1 
+let newArray = '';
+for (let name of names) {
+    newArray += name
+}
+console.log(newArray);
+
+
+// Solution-2 (Short)
+let addAllName = names.join('');
+console.log(addAllName);

D. Loop/Array-loop/split-reverse-join.js

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+/* Problem-4
+
+Reverse the words of a sentence. Only the position of the word will be reversed. check out the output
+
+Input: const statement = "I am a hard working person"
+
+Output: "I am a hard working person"
+*/
+const statement = "I am a hard working person";
+let reverseStatement = statement.split(" ").reverse().join(" ");
+console.log(reverseStatement);

D. Loop/Array-loop/string-reverse.js

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+/* Problem-1
+
+Write a JavaScript code to reverse the array colors without using the reverse method.
+
+Input: const colors = ['red', 'blue', 'green', 'yellow', 'orange']
+
+Output: ['orange', 'yellow', 'green', 'blue', 'red']
+*/
+
+const colors = ['red', 'blue', 'green', 'yellow', 'orange'];
+
+// solution-1  by for of loop 
+const reverseColor = [];
+for (const color of colors) {
+    reverseColor.unshift(color);
+}
+console.log(reverseColor);
+
+
+// solution-2  by for loop 
+
+const revColor = [];
+for (let i = 0; i < colors.length; i++) {
+    const color = colors[i];
+    revColor.unshift(color)
+}
+console.log(revColor);
+
+
+// solution-3  by for loop  (decrements -- )
+const decrementColor = [];
+for (let i = colors.length - 1; i >= 0; i--) {
+    const col = colors[i];
+    decrementColor.push(col)
+}
+console.log(decrementColor);
+
+
+// solution-4 Easy method solution Shortcut
+
+colors.reverse();
+console.log(colors);