JavaScript HTML DOM Objects In addition to the built-in JavaScript objects, you can also access and manipulate all of the HTML DOM objects with JavaScript. More JavaScript Objects Follow the links to learn more about the objects and their collections, properties, methods and events.…[ More ]

JavaScript RegExp Object The RegExp object is used to specify what to search for in a text What is RegExp RegExp, is short for regular expression. When you search in a text, you can use a pattern to describe what you are searching for. RegExp IS this pattern. A simple pattern can …[ More ]

JavaScript Math Object The Math object allows you to perform mathematical tasks. Try it Yourself - Examples round()How to use round(). random()How to use random() to return a random number between 0 and 1. max()How to use max() to return the number with the highest value…[ More ]

JavaScript Boolean Object The Boolean object is used to convert a non-Boolean value to a Boolean value (true or false). Try it Yourself - Examples Check Boolean valueCheck if a Boolean object is true or false. Complete Boolean Object Reference For a complete referenc…[ More ]

JavaScript Array Object The Array object is used to store multiple values in a single variable. Try it Yourself - Examples Create an arrayCreate an array, assign values to it, and write the values to the output. For...In StatementHow to use a for...in statement to loo…[ More ]

JavaScript Date Object The Date object is used to work with dates and times. Try it Yourself - Examples Return today's date and timeHow to use the Date() method to get today's date. getTime()Use getTime() to calculate the years since 1970. setFullYear()How to use setFu…[ More ]

JavaScript String Object The String object is used to manipulate a stored piece of text. Try it Yourself - Examples Return the length of a stringHow to use the length property to find the length of a string. Style stringsHow to style strings. The indexOf() methodHow to…[ More ]

JavaScript Objects Introduction JavaScript is an Object Oriented Programming (OOP) language. An OOP language allows you to define your own objects and make your own variable types. Object Oriented Programming JavaScript is an Object Oriented Programming (OOP) language. An OOP languag…[ More ]

JavaScript Guidelines Some other important things to know when scripting with JavaScript.  JavaScript is Case Sensitive A function named "myfunction" is not the same as "myFunction" and a variable named "myVar" is not the same as "myvar". JavaScript is case sensitive - therefore wa…[ More ]

JavaScript Special Characters In JavaScript you can add special characters to a text string by using the backslash sign. Insert Special Characters The backslash (\) is used to insert apostrophes, new lines, quotes, and other special characters into a text string. Look at the follow…[ More ]

JavaScript Throw Statement The throw statement allows you to create an exception. The Throw Statement The throw statement allows you to create an exception. If you use this statement together with the try...catch statement, you can control program flow and generate accurate error me…[ More ]

JavaScript Try...Catch Statement The try...catch statement allows you to test a block of code for errors. JavaScript - Catching Errors When browsing Web pages on the internet, we all have seen a JavaScript alert box telling us there is a runtime error and asking "Do you wish to debu…[ More ]

JavaScript Events Events are actions that can be detected by JavaScript. Events By using JavaScript, we have the ability to create dynamic web pages. Events are actions that can be detected by JavaScript. Every element on a web page has certain events which can trigger a JavaScript…[ More ]

JavaScript For...In Statement JavaScript For...In Statement The for...in statement loops through the elements of an array or through the properties of an object. Syntax for (variable in object)  {  code to be executed  } Note: The code in the body of the for...in loop is execute…[ More ]

JavaScript Break and Continue Statements The break Statement The break statement will break the loop and continue executing the code that follows after the loop (if any). Example

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