In JavaScript, numbers are implemented in double-precision 64-bit binary format IEEE 754. Numbers are only one type, represent numbers with or without decimals. JavaScript Numbers Exponentiation The very large and very small JavaScript numbers can be written with exponent (e). Output: JavaScript Numbers Format Just like other programming languages, JavaScript does not define different types like … Read more
JavaScript Array iteration methods operate on every array item. Following are some methods that are used for array iteration: Array.filter() method The filter() the method is used to create a new array with array elements based on condition. This example creates a new array from elements with a value larger than 20: Output: In the example above, … Read more
JavaScript Reserved words have special meaning and can not be used in your code as variables, function names, or loop labels. It is important to note that JavaScript is a case-sensitive language (whereas HTML is not case-sensitive). JavaScript Reserved words Here is a list of JavaScript reserved words (and words to avoid) in JavaScript: abstract … Read more
JavaScript const keyword was introduced in 2015. JavaScript array const is used very commonly. The arrays that are declared with const keyword cannot be reassigned: The const keyword mislead a little bit because it is not used to define a constant array. It is used to define an array constant reference. Because of this feature, … Read more
The JavaScript const variable is also used to declare a variable like var. But we cannot redeclare const in the whole program. The const keyword was introduced in ES6. The JavaScript const variables should be assigned the value at the time of declaration. The JavaScript const should be used when we declare There is a … Read more
In JavaScript sorting arrays can be done in many ways. These ways are mentioned below: Sorting an Array The sort() the method is used to sort array elements in place. It changes the element’s place in the original array: Output: Reversing an Array The reverse() the method is used to reverse the elements in an array. To sort arrays … Read more
The JavaScript Get-Date Methods are used to get information from a date object. In this post, we’ll learn how to retrieve different date methods in Javascript from the date object. In JavaScript, there are several ways to get the date. A date object’s data values can range from years, months, days, hours, minutes, seconds, and … Read more
The JavaScript string methods help to work on strings. JavaScript methods and properties help to work with primitive values. Following are some methods that are used to work with strings in JavaScript. String Length To check the length of a string in JavaScript the length property is used: Output: Converting to Upper and Lower Case A … Read more
JavaScript arithmetic operators are used to perform arithmetic operations on numbers (like variables or literals). An arithmetic operation is performed on 2 numbers typically. These numbers are known as an operand and the operation is done by an operator. Following are some basic JavaScript arithmetic operators: Operator Description + Addition – Subtraction * Multiplication ** … Read more
The JavaScript array methods help to work on arrays. Following are some JavaScript array methods that are used to work with arrays in JavaScript. Arrays to String Conversion The toString() the method is used to convert an array to a string of array values. Output: The join() the method also works the same as toString(), but it specifies the separator: … Read more
