JavaScript Boolean if statement for any truthy value of booleanValue including true, any non-zero number, any non-empty string value, any object or array reference. On… Read More »JavaScript Boolean if statement | Code
Use + Operator or String concat() method to string concatenation in JavaScript. The concat() method joins two or more strings. The same + operator you… Read More »JavaScript string concatenation | Example code
Use the Strict equality (===) operator in the if statement to check if not empty given string or variable in JavaScript. This is because ===… Read More »JavaScript if not empty | Example code
Use the logical OR ( || ) operator in the if statement, if one or both of the conditions are true, then the code inside… Read More »JavaScript if or statement | Example code
JavaScript Boolean operators allow you to perform different comparisons on the specified variables and evaluate the results. Here is the list of Boolean operators supported… Read More »JavaScript boolean operators | Code
The easiest way to convert a string to a boolean is to compare the string with ‘true‘ in JavaScript. Use toLowerCase() to convert a given… Read More »JavaScript string to boolean | Convert
JavaScript has a Boolean data type and a Boolean variable value can be TRUE or FALSE. The boolean function returns the boolean value of a… Read More »JavaScript Boolean, Boolean() | Basics
Use the isNaN() method to check the string number in JavaScript. This works regardless of whether the variable content is a string or number. The… Read More »JavaScript string is number check | Example code
JavaScript static methods belong to the class, not to the instance of the class. So JavaScript static methods are not called on the instance of… Read More »JavaScript call static method from instance | Code
JavaScript is a prototype-oriented, not an object-oriented programming language. So JavaScript doesn’t have an abstract class concept. If you would like a class that cannot… Read More »JavaScript abstract class | Basics