// program to check if the number is even or odd// take input from the userconstnumber = prompt("Enter a number: ");//check if the number is evenif(number %2==0) {console.log("The number is even."); }// if the number is oddelse{console.log("The number is odd."); } Ru...
We can use search method to check if a string contains a substring or not as shown below. var actualstring = "Javascript search method", var substringToCheck = "search"; var isContains=actualstring.search("search") !== -1; //isContains true ...
JavaScript Code:// Define a function 'isEven' that checks if a number 'num' is even const isEven = num => num % 2 === 0; // Test cases to check if numbers are even console.log(isEven(3)); // false (3 is not even) console.log(isEven(32)); // true (32 is even) console...
importjava.util.Scanner;importjava.math.BigInteger;publicclassExample22{publicstaticvoidmain(Stringargs[]){Scannerin=newScanner(System.in);System.out.print("Input a number: ");intn=in.nextInt();intn1=n+1;intpower=0;intans=0;for(inti=0;;i++){power=(int)Math.pow(2,i);if(power>n1)...
In React.js, you can check if a value is an integer or a string using JavaScript's typeof operator. The typeof operator returns a string indicating the type of the operand. To check if a value is an integer, you can use the Number.isInteger() method, whi
if(number>0){// Positive}else{// Negative} versus if(Math.sign(number)>0){// Positive}else{// Negative} Indeed, if you're just checking the boolean status, then I'd just use the comparative operator instead of usingMath.sign. But whereMath.signshines is it returns a number value. ...
Before we wrap up, let’s put your knowledge of JavaScript Program to Check Armstrong Number to the test! Can you solve the following challenge? Challenge: Write a function to check if a number is an Armstrong number. An Armstrong number of three digits is an integer such that the sum ...
//code to check if a value exists in an array using javascript indexOf var fruits_arr = ['Apple', 'Mango', 'Grapes', 'Orange', 'Fig', 'Cherry']; var string = "Orange"; // Find in Array fruits_arr.indexOf('Tomato'); fruits_arr.indexOf('Grapes'); // Find in String string...
Check if a string is null or empty in XSLT 多条件查询 string.Format("/root/deviceList//item/guid[{0}]", strBuilder.ToString()) "/root/deviceList//item/guid[text()=\"h\" or text()=\"a\" or text()=\"c\"]"谓词嵌套var nodes = xmlDoc.SelectNodes(string.Format("/root/device...
Yes, the syntax is the same as Lodash 🤓 #Why can't we usetypeof? Often, we want to check the type of a value, we simply usetypeof typeof'string';// 'string'typeof100;// 'number'typeoftrue;// 'boolean'typeoffalse;// 'boolean'typeoffunction(){};// 'function'typeof{};/...