{"id":24057,"date":"2019-02-22T16:15:47","date_gmt":"2019-02-22T14:15:47","guid":{"rendered":"http:\/\/www.webcodegeeks.com\/?p=24057"},"modified":"2019-02-22T08:18:18","modified_gmt":"2019-02-22T06:18:18","slug":"javascript-number-methods-and-properties-example","status":"publish","type":"post","link":"https:\/\/www.webcodegeeks.com\/javascript\/javascript-number-methods-and-properties-example\/","title":{"rendered":"JavaScript Number Methods and Properties Example"},"content":{"rendered":"<p>Greetings readers, in this tutorial, we will explore the <strong>Number methods and properties<\/strong> in the javascript.<\/p>\n<h2>1. Introduction<\/h2>\n<p><strong>JavaScript<\/strong> is an object-oriented programming language that allows the <em>client-side scripting<\/em> to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support it. The JavaScript scripting language includes:<\/p>\n<ul>\n<li>Declaring variables<\/li>\n<li>Maintaining the retrieving values<\/li>\n<li>Defining and invoking functions<\/li>\n<li>Defining classes<\/li>\n<li>Load and use external modules<\/li>\n<li>Define event handlers<\/li>\n<li>And much more \u2026.<\/li>\n<\/ul>\n<p>[ulp id=&#8217;tCIwOngQUb3zSUuF&#8217;]<\/p>\n<h3>1.1 Advantages of JavaScript Language<\/h3>\n<p>The pros of using the JavaScript scripting language are:<\/p>\n<ul>\n<li>JavaScript is easy to learn<\/li>\n<li>It executes on the client&#8217;s browser, so eliminates the server-side processing and be executed on any OS<\/li>\n<li>JavaScript can be used with any type of web page e.g. PHP, ASP.NET, Perl etc<\/li>\n<li>Web-page performance increases due to client-side execution<\/li>\n<li>JavaScript code can be minified to decrease the loading time from the server<\/li>\n<li>Many JavaScript-based application frameworks are available in the market to create Single page web applications e.g. AngularJS, ReactJS etc.<\/li>\n<\/ul>\n<h3>1.2 Disadvantages of JavaScript Language<\/h3>\n<p>The cons of using the JavaScript scripting language are:<\/p>\n<ul>\n<li>Does not have any multi-threading or multi-processing capabilities<\/li>\n<li>Does not allow the file reading and writing capabilities<\/li>\n<\/ul>\n<h3>1.3 Number Methods and Properties in javascript language<\/h3>\n<h4>1.3.1 Number Methods<\/h4>\n<p>Following table show the different number methods in the javascript language.<\/p>\n<table>\n<thead>\n<tr>\n<th>Method<\/th>\n<th>Description<\/th>\n<th>Syntax<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><code>toExponential()<\/code><\/td>\n<td>This method converts a number to its exponential form.<\/td>\n<td><code>myNumber.toExponential()<\/code><\/td>\n<\/tr>\n<tr>\n<td><code>toFixed(x)<\/code><\/td>\n<td>This method formats a number with a specific number of digits after the decimal point.<\/td>\n<td><code>myNumber.toExponential(2)<\/code><\/td>\n<\/tr>\n<tr>\n<td><code>toPrecision(x)<\/code><\/td>\n<td>This method formats a number to <em>x<\/em> length.<\/td>\n<td><code>myNumber.toPrecision(2)<\/code><\/td>\n<\/tr>\n<tr>\n<td><code>toString()<\/code><\/td>\n<td>This method returns a number in a string format.<\/td>\n<td><code>myNumber.toString()<\/code><\/td>\n<\/tr>\n<tr>\n<td><code>valueOf()<\/code><\/td>\n<td>This method returns the primordial value of a number.<\/td>\n<td><code>myNumber.valueOf()<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>1.3.2 Number Properties<\/h4>\n<p>Following table shows the different number properties in the javascript language.<\/p>\n<table>\n<thead>\n<tr>\n<th>Property<\/th>\n<th>Description<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><code>MAX_VALUE<\/code><\/td>\n<td>Returns the largest number possible.<\/td>\n<\/tr>\n<tr>\n<td><code>MIN_VALUE<\/code><\/td>\n<td>Returns the smallest number possible.<\/td>\n<\/tr>\n<tr>\n<td><code>NEGATIVE_INFINITY<\/code><\/td>\n<td>Represents negative infinity.<\/td>\n<\/tr>\n<tr>\n<td><code>NaN<\/code><\/td>\n<td>Represents a <em>not-a-number<\/em> value.<\/td>\n<\/tr>\n<tr>\n<td><code>POSITIVE_INFINITY<\/code><\/td>\n<td>Represents infinity.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>2. JavaScript Number Methods and Properties Example<\/h2>\n<p>Here is a systematic guide for implementing this tutorial.<\/p>\n<h3>2.1 Tools Used<\/h3>\n<p>We are using Eclipse Kepler SR2, JDK 8 and Maven. Having said that, we have tested the code against JDK 1.7, and it works well.<\/p>\n<h3>2.2 Project Structure<\/h3>\n<p>Firstly, let us review the final project structure if you are confused about where you should create the corresponding files or folder later!<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"460\" height=\"251\" src=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-structure-guide-img-1.jpg\" alt=\"JavaScript Number Methods - Project Structure\" class=\"wp-image-24060\" srcset=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-structure-guide-img-1.jpg 460w, https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-structure-guide-img-1-300x164.jpg 300w\" sizes=\"(max-width: 460px) 100vw, 460px\" \/><figcaption>Fig. 1: Application Project Structure<\/figcaption><\/figure><\/div>\n\n\n<h3>2.3 Project Creation<\/h3>\n<p>This section will show how to create a Java-based Maven project with Eclipse. In Eclipse Ide, go to <code>File -&gt; New -&gt; Maven Project<\/code>.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"657\" height=\"690\" src=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-guide-img-1.jpg\" alt=\"JavaScript Number Methods - Maven Project\" class=\"wp-image-24061\" srcset=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-guide-img-1.jpg 657w, https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-guide-img-1-286x300.jpg 286w\" sizes=\"(max-width: 657px) 100vw, 657px\" \/><figcaption>Fig. 2: Create a Maven Project<\/figcaption><\/figure><\/div>\n\n\n<p>In the New Maven Project window, it will ask you to select the project location. By default, &#8216;Use default workspace location&#8217; will be selected. Just click on the next button to proceed.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"598\" height=\"543\" src=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-guide-img-2.jpg\" alt=\"JavaScript Number Methods - Project Details\" class=\"wp-image-24062\" srcset=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-guide-img-2.jpg 598w, https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-guide-img-2-300x272.jpg 300w\" sizes=\"(max-width: 598px) 100vw, 598px\" \/><figcaption>Fig. 3: Project Details<\/figcaption><\/figure><\/div>\n\n\n<p>Select the &#8216;Maven Web App&#8217; Archetype from the list of options and click next.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"515\" height=\"541\" src=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-guide-img-3.jpg\" alt=\"JavaScript Number Methods - Archetype Selection\" class=\"wp-image-24063\" srcset=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-guide-img-3.jpg 515w, https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-guide-img-3-286x300.jpg 286w\" sizes=\"(max-width: 515px) 100vw, 515px\" \/><figcaption>Fig. 4: Archetype Selection<\/figcaption><\/figure><\/div>\n\n\n<p>It will ask you to &#8216;Enter the group and the artifact id for the project&#8217;. We will input the details as shown in the below image. The version number will be by default: <code>0.0.1-SNAPSHOT<\/code>.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"599\" height=\"537\" src=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-guide-img-4.jpg\" alt=\"JavaScript Number Methods - Archetype Parameters\" class=\"wp-image-24064\" srcset=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-guide-img-4.jpg 599w, https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-guide-img-4-300x269.jpg 300w\" sizes=\"(max-width: 599px) 100vw, 599px\" \/><figcaption>Fig. 5: Archetype Parameters<\/figcaption><\/figure><\/div>\n\n\n<p>Click on Finish and the creation of a maven project is completed. If you see, it has downloaded the maven dependencies and a <code>pom.xml<\/code> file will be created. It will have the following code:<\/p>\n<p><span style=\"text-decoration: underline\"><em>pom.xml<\/em><\/span><\/p>\n<pre class=\"brush:xml; wrap-lines:false;\">&lt;project xmlns=\"http:\/\/maven.apache.org\/POM\/4.0.0\" xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\" xsi:schemaLocation=\"http:\/\/maven.apache.org\/POM\/4.0.0 http:\/\/maven.apache.org\/xsd\/maven-4.0.0.xsd\"&gt;\n\t&lt;modelVersion&gt;4.0.0&lt;\/modelVersion&gt;\n\t&lt;groupId&gt;com.javascript&lt;\/groupId&gt;\n\t&lt;artifactId&gt;Javascriptnumbermethodsandpropertiesexample&lt;\/artifactId&gt;\n\t&lt;version&gt;0.0.1-SNAPSHOT&lt;\/version&gt;\n\t&lt;packaging&gt;war&lt;\/packaging&gt;\n&lt;\/project&gt;\n<\/pre>\n<h2>3. Application Building<\/h2>\n<p>Let us see the sample code snippet to understand the <em>Number Methods and Properties<\/em> in the javascript language.<\/p>\n<p><span style=\"text-decoration: underline\"><em>index.jsp<\/em><\/span><\/p>\n<pre class=\"brush: html; wrap-lines:false;\">&lt;!DOCTYPE html&gt;\n&lt;html lang=\"en\"&gt;\n\n&lt;head&gt;\n    &lt;title&gt;Index page&lt;\/title&gt;\n    &lt;meta http-equiv=\"Content-Type\" content=\"text\/html; charset=ISO-8859-1\"&gt;\n    &lt;link rel=\"stylesheet\" href=\"https:\/\/maxcdn.bootstrapcdn.com\/bootstrap\/4.2.1\/css\/bootstrap.min.css\"&gt;\n    &lt;style&gt;\n        .column {\n            float: left;\n            width: 50%;\n            padding: 10px;\n        }\n        \n        .row:after {\n            display: table;\n            clear: both;\n        }\n    &lt;\/style&gt;\n&lt;\/head&gt;\n\n&lt;body&gt;\n    &lt;div class=\"container\"&gt;\n        &lt;h2 align=\"center\" class=\"text-muted\"&gt;Number Methods and Properties in JavaScript&lt;\/h2&gt;\n        &lt;hr \/&gt;\n\n        &lt;!-- JavaScript Number Methods and Properties Example --&gt;\n        &lt;div class=\"row\"&gt;\n            &lt;div class=\"column\"&gt;\n                &lt;h4 class=\"font-weight-normal\"&gt;&lt;mark&gt;Number methods&lt;\/mark&gt; in javascript are the default methods that are a part of an object's definition.&lt;\/h4&gt;\n                &lt;div&gt;&nbsp;&lt;\/div&gt;\n\n                &lt;table class=\"table table-bordered text-center\"&gt;\n                    &lt;thead&gt;\n                        &lt;tr&gt;\n                            &lt;th scope=\"col\"&gt;Method&lt;\/th&gt;\n                            &lt;th scope=\"col\"&gt;Description&lt;\/th&gt;\n                            &lt;th scope=\"col\"&gt;Syntax&lt;\/th&gt;\n                        &lt;\/tr&gt;\n                    &lt;\/thead&gt;\n                    &lt;tbody&gt;\n                        &lt;tr&gt;\n                            &lt;td&gt;&lt;code&gt;toExponential()&lt;\/code&gt;&lt;\/td&gt;\n                            &lt;td&gt;This method converts a number to its exponential form.&lt;\/td&gt;\n                            &lt;td&gt;&lt;code&gt;myNumber.toExponential()&lt;\/code&gt;&lt;\/td&gt;\n                        &lt;\/tr&gt;\n                        &lt;tr&gt;\n                            &lt;td&gt;&lt;code&gt;toFixed(x)&lt;\/code&gt;&lt;\/td&gt;\n                            &lt;td&gt;This method formats a number with a specific number of digits after the decimal point.&lt;\/td&gt;\n                            &lt;td&gt;&lt;code&gt;myNumber.toExponential(2)&lt;\/code&gt;&lt;\/td&gt;\n                        &lt;\/tr&gt;\n                        &lt;tr&gt;\n                            &lt;td&gt;&lt;code&gt;toPrecision(x)&lt;\/code&gt;&lt;\/td&gt;\n                            &lt;td&gt;This method formats a number to &lt;em&gt;x&lt;\/em&gt; length.&lt;\/td&gt;\n                            &lt;td&gt;&lt;code&gt;myNumber.toPrecision(2)&lt;\/code&gt;&lt;\/td&gt;\n                        &lt;\/tr&gt;\n                        &lt;tr&gt;\n                            &lt;td&gt;&lt;code&gt;toString()&lt;\/code&gt;&lt;\/td&gt;\n                            &lt;td&gt;This method returns a number in a string format.&lt;\/td&gt;\n                            &lt;td&gt;&lt;code&gt;myNumber.toString()&lt;\/code&gt;&lt;\/td&gt;\n                        &lt;\/tr&gt;\n                        &lt;tr&gt;\n                            &lt;td&gt;&lt;code&gt;valueOf()&lt;\/code&gt;&lt;\/td&gt;\n                            &lt;td&gt;This method returns the primordial value of a number.&lt;\/td&gt;\n                            &lt;td&gt;&lt;code&gt;myNumber.valueOf()&lt;\/code&gt;&lt;\/td&gt;\n                        &lt;\/tr&gt;\n                    &lt;\/tbody&gt;\n                &lt;\/table&gt;\n            &lt;\/div&gt;\n            &lt;div class=\"column\"&gt;\n                &lt;h4 class=\"font-weight-normal\"&gt;Following table illustrates the &lt;mark&gt;Number Properties&lt;\/mark&gt; in javascript.&lt;\/h4&gt;\n                &lt;div&gt;&nbsp;&lt;\/div&gt;\n\n                &lt;table class=\"table table-bordered text-center\"&gt;\n                    &lt;thead&gt;\n                        &lt;tr&gt;\n                            &lt;th scope=\"col\"&gt;Property&lt;\/th&gt;\n                            &lt;th scope=\"col\"&gt;Description&lt;\/th&gt;\n                        &lt;\/tr&gt;\n                    &lt;\/thead&gt;\n                    &lt;tbody&gt;\n                        &lt;tr&gt;\n                            &lt;td&gt;&lt;code&gt;MAX_VALUE&lt;\/code&gt;&lt;\/td&gt;\n                            &lt;td&gt;Returns the largest number possible.&lt;\/td&gt;\n                        &lt;\/tr&gt;\n                        &lt;tr&gt;\n                            &lt;td&gt;&lt;code&gt;MIN_VALUE&lt;\/code&gt;&lt;\/td&gt;\n                            &lt;td&gt;Returns the smallest number possible.&lt;\/td&gt;\n                        &lt;\/tr&gt;\n                        &lt;tr&gt;\n                            &lt;td&gt;&lt;code&gt;NEGATIVE_INFINITY&lt;\/code&gt;&lt;\/td&gt;\n                            &lt;td&gt;Represents negative infinity.&lt;\/td&gt;\n                        &lt;\/tr&gt;\n                        &lt;tr&gt;\n                            &lt;td&gt;&lt;code&gt;NaN&lt;\/code&gt;&lt;\/td&gt;\n                            &lt;td&gt;Represents a &lt;em&gt;not-a-number&lt;\/em&gt; value.&lt;\/td&gt;\n                        &lt;\/tr&gt;\n                        &lt;tr&gt;\n                            &lt;td&gt;&lt;code&gt;POSITIVE_INFINITY&lt;\/code&gt;&lt;\/td&gt;\n                            &lt;td&gt;Represents infinity.&lt;\/td&gt;\n                        &lt;\/tr&gt;\n                    &lt;\/tbody&gt;\n                &lt;\/table&gt;\n            &lt;\/div&gt;\n        &lt;\/div&gt;\n    &lt;\/div&gt;\n&lt;\/body&gt;\n\n&lt;\/html&gt;\n<\/pre>\n<h2>4. Run the Application<\/h2>\n<p>As we are ready for all the changes, let us compile the project and deploy the application on the Tomcat7 server. To deploy the application on Tomat7, right-click on the project and navigate to <code>Run as -&gt; Run on Server<\/code>.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"818\" height=\"368\" src=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-deploy-guide-img-1.jpg\" alt=\"JavaScript Number Methods - Deploy Application on Tomcat\" class=\"wp-image-24065\" srcset=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-deploy-guide-img-1.jpg 818w, https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-deploy-guide-img-1-300x135.jpg 300w, https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-deploy-guide-img-1-768x346.jpg 768w\" sizes=\"(max-width: 818px) 100vw, 818px\" \/><figcaption>Fig. 6: How to Deploy Application on Tomcat<\/figcaption><\/figure><\/div>\n\n\n<p>Tomcat will deploy the application in its web-apps folder and shall start its execution to deploy the project so that we can go ahead and test it in the browser.<\/p>\n<h2>5. Project Demo<\/h2>\n<p>Open your favorite browser and hit the following URL to display the application\u2019s index page and console output as shown in Fig. 7.<\/p>\n<pre class=\"brush:plain; wrap-lines:false;\">http:\/\/localhost:8082\/Javascriptnumbermethodsandpropertiesexample\/<\/pre>\n<p>Server name (localhost) and port (8082) may vary as per your Tomcat configuration.<\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"818\" height=\"449\" src=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-demo-guide-img-1.jpg\" alt=\"JavaScript Number Methods - Index page\" class=\"wp-image-24067\" srcset=\"https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-demo-guide-img-1.jpg 818w, https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-demo-guide-img-1-300x165.jpg 300w, https:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/project-number-properties-methods-demo-guide-img-1-768x422.jpg 768w\" sizes=\"(max-width: 818px) 100vw, 818px\" \/><figcaption>Fig. 7: Index page<\/figcaption><\/figure><\/div>\n\n\n<h2>6. Conclusion<\/h2>\n<p>In this section, developers learned how to create a simple application with the JavaScript language. Developers can download the sample application as an Eclipse project in the <a href=\"#projectDownload\">Downloads<\/a> section.<\/p>\n<h2><a name=\"projectDownload\"><\/a>7. Download the Eclipse Project<\/h2>\n<p>This was a beginner\u2019s tutorial to explore the <em>Number methods and Properties<\/em> in the javascript language.<\/p>\n<div class=\"download\"><strong>Download<\/strong><br>You can download the full source code of this example here:&nbsp;<a target=\"_blank\" href=\"http:\/\/www.webcodegeeks.com\/wp-content\/uploads\/2019\/02\/Javascriptnumbermethodsandpropertiesexample.zip\" rel=\"noopener noreferrer\"><strong>JavaScript Number Methods and Properties Example<\/strong><\/a><\/div>","protected":false},"excerpt":{"rendered":"<p>Greetings readers, in this tutorial, we will explore the Number methods and properties in the javascript. 1. Introduction JavaScript is an object-oriented programming language that allows the client-side scripting to interact with a user and deliver the dynamic pages. Most web browsers including Google Chrome, Mozilla Firefox, Safari, Internet Explorer, Microsoft Edge, Opera, etc. support &hellip;<\/p>\n","protected":false},"author":2162,"featured_media":920,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[82],"class_list":["post-24057","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-javascript","tag-javascript"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>JavaScript Number Methods and Properties Example - Web Code Geeks - 2026<\/title>\n<meta name=\"description\" content=\"Interested to learn more about JavaScript? 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