Data types in javascript, JAVA Programming

Assignment Help:

A value, the data assigned to a variable, may contain any sort of data. Though, JavaScript considers data to fall into many possible types. Based on the type of data, certain operations may or may not be allowed on the values. For instance, you cannot multiply arithmetically two string values. Variables can be of following types:

Data Types

Description

 

 

 

 

 

 

 

Number

3 or 7.987 are the examples of Integer & floating-point numbers.

 

Integers can be positive, 0, or negative; Integers can be expressed in decimal (base 10), hexadecimal (base 16), and octal (base 8). A decimal integer literal contains a sequence of digits without a leading 0 (zero). A leading 0 (zero) onto an integer literal denote it is in octal; a leading 0x (or 0X) specified hexadecimal. Hexadecimal integers can include digits (0-9) and the letters a-f & A-F. Octal integers can include only the digits 0-7.

 

A floating-point number can contain either a decimal fraction, an "e" (uppercase or lowercase), that is used to represent "ten to the power of" in scientific notation, or both. The exponent part is an "e" or "E" followed by an integer, which can be signed (preceded by "+" or "-"). A floating-point literal ought to have at least one digit & either a decimal point or "e" (or "E").

Boolean

True or False. The possible Boolean values are true & false. These are special values, & not usable as 1 & 0. In a comparison, any expression which evaluates to zero is taken to be false, & any statement which evaluates to a number other than 0 is taken to be true.

String

"Hello World!" Strings are delineated through single or double quotation marks. (Employ single quotes to type strings that have quotation marks.)

Object

MyObj = new Object();

Null

Not the simialr as zero - no value at all. A null value is one which has no value and means nothing.

Undefined

A value which is undefined is a value held through a variable after it has been created, however before a value has been assigned to it.


Related Discussions:- Data types in javascript

State the significance of public and private modifiers, State the significa...

State the significance of public, private, protected, default modifiers both singly and in combination and state the effect of package relationships on declared items qualified by

What is an exceptions, What is an Exceptions ? • What is an exception?...

What is an Exceptions ? • What is an exception? • try-catch • finally • The different kinds of exceptions • Multiple catch clauses • The throws clause • Throwing excepti

Beam, program for hinged beam

program for hinged beam

How to display validation errors on jsp page, tag shows all the errors. i...

tag shows all the errors. iterates over ActionErrors request attribute.

Why uploading a web page is important, Why uploading a web page is importan...

Why uploading a web page is important? Describe in 2 - 3 lines? Through only uploading webpage we could place our data so that another can reach up to what we have loaded. Uplo

What is application context module, The Application context module makes sp...

The Application context module makes spring a framework. This module extends the concept of BeanFactory, giving support for internationalization (I18N) messages, application lifecy

Event handler, search a file with specific extension

search a file with specific extension

State about the performance of java, State about the performance of java ...

State about the performance of java First versions of java were pretty slow. Java performance has gotten a lot better with aggressive just-in-time-compiler (JIT) techniques

I need java expert with tomcat tuning experience, I need Java expert with t...

I need Java expert with tomcat tuning experience Project Description: Require a Java expert to fix memory issues with tomcat. Skills required: Java, Apache

How many static initializers can there, How many static initializers can yo...

How many static initializers can you have ? As many as you want, but the static initializers and class variable initializers are implemented in textual order and may not refer

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd