In this tutorial, we will learn how to get the length of the string in JavaScript. While writing any string in JavaScript, we might need to know the number of characters present in it. By knowing an easy method to calculate the length of a string in JavaScript, we can increase or decrease the words and phrases. There are different ways to get the length of a string, but the easiest way is to use the length property of the string. Let’s discuss the different approaches in detail. Using the string.length Property If you want to use a method ... Read More

In this tutorial, we will learn if there is a Boolean Typed Array in JavaScript. Typed Arrays are the objects same as arrays by using we can read or write raw binary data. It is useful to carry advanced information that contains lots of data like audio or videos fast and without distortion compared to our traditional way. The machine can only understand 0s and 1s. The typed arrays saved the information in an array of binary data. So, it becomes easier to transport the data from one end to another. Now come to the question- Is there a Boolean ... Read More

In this tutorial, we will learn to compare a string to the Boolean in JavaScript. The JavaScript has an equality operator to compare one value with another value.There are two types of equality operators in JavaScript; one is an equality operator (==), and another is a strict equality operator (===). The difference between both of them is they compare operands differently.The equality operator compares the only values of both operands and returns the Boolean value.The strict equality operators first compare the values of both operands, and if the values match, it compares the data type of both operands. In such ... Read More

The exclamation operator is to perform negation on an expression.ExampleYou can try to run the following code to learn how to implement exclamation(!) operator in JavaScript −Live Demo           JavaScript Boolean                        var answer = true;          document.write(answer);          document.write(""+!answer);          

Yes, it is possible to convert Boolean to Integer in JavaScript, using the Ternary Operator.ExampleYou can try to run the following code to convert Boolean to Integer −Live Demo           JavaScript Boolean                        var answer = true;          document.write(answer);          var pass_marks = answer ? 90 : 40;          document.write("Passing Marks: "+pass_marks);          

This tutorial teaches us to convert the string to the boolean in JavaScript. Suppose that while developing the application, we have stored the boolean value in the database or local storage in the string format. Now, based on the stored string value, we want to convert it to a boolean value and perform a particular operation for the application user; the question arises how can we convert a string to a boolean?There can be many possible ways to solve the above problem. We will learn some useful methods in this tutorial.Using the Comparison (==) and Ternary operator (? :)Using the Boolean classUsing ... Read More

To create a String object in JavaScript, use string.constructor. A constructor returns a reference to the string function that created the instance's prototype.ExampleYou can try to run the following code to create a String object with the constructor −Live Demo           JavaScript String constructor Method                        var str = new String( "This is string" );          document.write("str.constructor is:" + str.constructor);          

To get the first index of an occurrence of the specified value in a string, use the JavaScript indexOf() method.ExampleYou can try to run the following code to get the first index −Live Demo           JavaScript String indexOf() Method                        var str = new String( "Learning is fun! Learning is sharing!" );          var index = str.indexOf( "Learning" );          document.write("First index of string Learning :" + index );          

To convert a Boolean value to string value in JavaScript, use the toString() method. This method returns a string of either "true" or "false" depending upon the value of the object.ExampleYou can try to run the following code to convert a boolean value to string value −Live Demo           JavaScript toString() Method                        var flag = new Boolean(true);          document.write( "flag.toString is : " + flag.toString() );          

In this tutorial, we will learn how we can change the elements of a JavaScript array in a comma-separated list. Sometimes, we need the elements of a JavaScript array in a format that is not returned by the array itself by default, so we need to write some extra code to implement this task. Fortunately, JavaScript allows us to do so by using some in-built methods. We will discuss these methods in detail. Following are the in-built methods provided by JavaScript to convert the array into a comma-separated list − Array join() method Array toString method Let us ... Read More