A switch statement in JavaScript is a multi-way decision statement that executes one statement from multiple conditions. It uses the result of an expression to evaluate which statement has to be executed. In other words, a switch statement executes statements…
If else in JavaScript is a two-way conditional statement or double selection statement. It tests a condition and executes one of two sets of code, depending on the result. In other words, the if-else statement executes the first statement if…
An if statement in JavaScript is the simplest decision-making statement that allows to specify an alternative path of execution in a program. It is used to change the flow of execution in the program. This statement executes a block of…
A simple JavaScript program consists of a set of statements that generally contain expressions and end with a semicolon. When we execute a JavaScript program, at a time, only one statement is executed by the JavaScript interpreter. These statements are…
A palindrome in Java is a word, phrase, number, or sentence that reads the same in forward and backward directions. In other simple words, a palindrome is a word, phrase, number, or sequence of characters that is the same after…
In this tutorial, we will learn how to reverse a string by word or character in Java with the help of example programs. A string is a sequence of characters that is considered as an object in Java. In Java,…
When we work with a complex expression that contains more than one operator, it is vital to know the order in which JavaScript uses rules of operator precedence to calculate the value. The precedence of operators in JavaScript helps to…
The “typeof” operator in JavaScript is a unary operator that checks data types of its operands. The operand can be either literal, variable, function, or object. The typeof operator has only one operand. It returns the type of variable of…
In the previous tutorial so far, we learned all binary operators and ternary operators. JavaScript also provides unary operators that requires only single variable. Unary operators in JavaScript are those operators that works on a single operand, which may be…
