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For this, you need to use if condition to compare triplets.Let’s say we are passing the following values −35, 36, 37, 33, 48, 50ExampleFollowing is the code −function tripletsSolution(first, second, third, fourth, fifth, sixth) { var storedResult = [] if (first > fourth || second > fifth || third > sixth) { storedResult = storedResult + 1; } if (first < fourth || second < fifth || third < sixth) { storedResult = storedResult + 1; } return storedResult.split(''); } console.log(tripletsSolution(35, 36, 37, 33, 48, 50));To run the above program, use the following command −node fileName.js.Here, my file name is demo242.js.OutputThe output is as follows −PS C:\Users\Amit\javascript-code> node demo242.js [ '1', '1' ]
Let’s say we have the following hyphen delimited string with negative or range of numbers −var firstValue = "John-Smith-90-100-US"; var secondValue = "David-Miller--120-AUS";To split, use regular expressions. Following is the code −ExampleFollowing is the code −var firstValue = "John-Smith-90-100-US"; var secondValue = "David-Miller--120-AUS"; var regularExpression = /-(?=[A-Za-z-]|\d+-\d)/; var result1 = firstValue.split(regularExpression); var result2 = secondValue.split(regularExpression); console.log(result1); console.log(result2);To run the above program, use the following command −node fileName.js. Here, my file name is demo241.js.OutputThe output is as follows −PS C:\Users\Amit\javascript-code> node demo241.js [ 'John', 'Smith', '90-100', 'US' ] [ 'David', 'Miller', '-120', 'AUS' ]Read More
There is no in-built function to replace all occurrences of word. You need to create your own function.Let’s say the following is our string −var sentence = "Yes, My Name is John Smith. I live in US. Yes, My Favourite Subject is JavaScript";ExampleFollowing is the code −var sentence = "Yes, My Name is John Smith. I live in US. Yes, My Favourite Subject is JavaScript"; console.log(sentence); function replaceYesWithHi(word, sentence, replaceValue) { return sentence.split(word).join(replaceValue); } var replacementofYesWithHi = replaceYesWithHi("Yes", sentence, "Hi"); console.log(replacementofYesWithHi);To run the above program, use the following command −node fileName.js.Here, my file name is demo240.js.OutputThe output is as follows −PS C:\Users\Amit\javascript-code> node demo240.js Yes, My Name is John Smith. I live in US. Yes, My Favourite ... Read More
Let’s say the following is our string”var stringValue="453.000.00.00.0000";To convert the above string with zeroes to number, use parseInt() along with replace() −var numberValue = parseInt(stringValue.replace(/\./gm, '')); ExampleFollowing is the complete code −var stringValue="453.000.00.00.0000"; var numberValue = parseInt(stringValue.replace(/\./gm, '')); console.log("Original value="+stringValue) console.log("After modification the value="+numberValue);To run the above program, use the following command −node fileName.js. Here, my file name is demo239.js.OutputThe output is as follows −PS C:\Users\Amit\javascript-code> node demo239.js Original value=453.000.00.00.0000 After modification the value=45300000000000
The best way to reduce and merge a collection of objects, use the concept of Object.values() along with reduce().Following is the object −var details = [ { studentId: 10, marks: 75, studentName: "John" }, { studentId: 10, marks: 75, studentName: "John" }, { studentId: 11, marks: 98, studentName: "Bob" } ];ExampleFollowing is the code to reduce and merge −var details = [ { studentId: 10, marks: 75, studentName: "John" }, { studentId: 10, marks: 75, studentName: "John" }, { studentId: 11, marks: 98, studentName: "Bob" } ]; output = Object.values(details.reduce((value, object) => { ... Read More
Let’s say the following are our time data −var startHour = dayjs().hour(10) var endHour = dayjs().hour(22)To get the difference, use the diff() method −ExampleFollowing is the code − Live Demo Document var startHour = dayjs().hour(10) var endHour = dayjs().hour(22) console.log("The hours difference is=" + endHour.diff(startHour, "hours")); To run the above program, save the file name anyName.html(index.html). Right click on the file and select the option “Open with live server” in VS Code editor −OutputThe output is as follows −
Let’s say the following are ourrinput type checkbox −John David We want to check any of the checkbox. Use the checked property to check the checkbox.ExampleFollowing is the code − Live Demo Document John David document.querySelector('#checkedValue2').checked = true To run the above program, save the file name anyName.html(index.html). Right click on the file and select the option “Open with live server” in VS Code editor −OutputThe output is as follows −
Let’s say the following are our values −'6778922' '76633 56 1443' '8888 4532 3232 9999'We want the preceding characters to be replaced with 4 asterisks and the display rest of the last 3 characters. The output should be −**** 922 **** 443 **** 999For such conditions, use the replace() and set regex in it.ExampleFollowing is the code −const hideDataWithDot = value => value.replace(/.+(.{3})$/, "**** $1"); console.log(hideDataWithDot('6778922')) console.log(hideDataWithDot('76633 56 1443')) console.log(hideDataWithDot('8888 4532 3232 9999')) To run the above program, use the following command −node fileName.js. Here, my file name is demo236.js.OutputThe output is as follows −PS C:\Users\Amit\javascript-code> node demo236.js **** ... Read More
Let’s say the following is our string with comma and whitespace −var sentences = " John , David , Bob , Mike, Carol ";To split the sentences by comma, use split(). For removing surrounding spaces, use trim().ExampleFollowing is the code −var sentences = " John , David , Bob , Mike, Carol "; console.log("The value=" + sentences); var result = sentences.split(", ").map(function (value) { return value.trim(); }); console.log("After modifying the value=") console.log(result);To run the above program, use the following command −node fileName.js.Here, my file ... Read More
Let’s say the following is our array with duplicate elements −var duplicateNumbers = [10, 20, 100, 40, 20, 10, 100, 1000];We want the output to be −[10, 20, 100, 40, 1000];To display only the unique elements, use the concept of filter.ExampleFollowing is the code −var duplicateNumbers = [10, 20, 100, 40, 20, 10, 100, 1000]; console.log("With Duplicates Values="); console.log(duplicateNumbers); var noDuplicateNumbersArray = duplicateNumbers.filter(function (value, index, array) { return array.indexOf(value) === index; } ); console.log("Without Duplicates Values=") console.log(noDuplicateNumbersArray);To run the above program, you need to use the following command −node fileName.js.Here, my file name is demo234.js.OutputThe output is as ... Read More