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Javascript Articles
Page 445 of 534
What is availHeight property in JavaScript?
Use the screen.availHeight property to return the width of the user’s screen. The result will be in pixels and Taskbar feature won’t be included.ExampleYou can try to run the following code to learn how to work with the screen.availHeight property in JavaScript −Live Demo document.write("Height of the screen: "+screen.availHeight);
Read MoreWhat is the role of pageXOffset property in JavaScript?
If you want to get the pixels the document scrolled to from the upper left corner of the window, then use the pageXoffset and pageYoffset property. Use pageXoffset for horizontal pixels.ExampleYou can try to run the following code to learn how to work with pageXOffset property in JavaScript −Live Demo div { background-color: green; height: 1500px; width: 1500px; } function scrollFunc() { window.scrollBy(200, 200); alert("Horizonal: " + window.pageXOffset); } Scroll
Read MoreWith JavaScript RegExp search a hexadecimal number character.
To find a hexadecimal number character with JavaScript Regular Expression, use the following. Add the hexadecimal number here −\xddExampleYou can try to run the following code to find hexadecimal number character. It searches for hexadecimal number 53 i.e. S − JavaScript Regular Expression var myStr = "Secure and Responsive!"; var reg = /\x53/g; var match = myStr.match(reg); document.write(match);
Read MoreWith JavaScript Regular Expression find a non-whitespace character.\\n\\n
To find a non-whitespace character, use the following −\SExampleYou can try to run the following code to find non-whitespace character − JavaScript Regular Expression var myStr = "100% Responsive!"; var reg = /\S/g; var match = myStr.match(reg); document.write(match);
Read MoreFor Hosts Locale how to convert a string to lowercase letters in JavaScript?
To convert a string to lowercase letters in JavaScript, use the toLocaleLowerCase() method.ExampleYou can try to run the following code to learn how to work with toLocaleLowerCase() method in JavaScript −Live Demo var a = "WELCOME!"; document.write(a.toLocaleLowerCase());
Read MoreWith JavaScript RegExp search a carriage return character.
To find carriage return character with JavaScript Regular Expression, use the following −\rExampleYou can try to run the following code to find a carriage return character. It returns the position where the carriage return (\r) character is found − JavaScript Regular Expression var myStr = "100% \r Responsive!"; var reg = /\r/; var match = myStr.search(reg); document.write(match);
Read MoreWhat is the usage of in operator in JavaScript?
The operator is used in JavaScript to check whether a property is in an object or not.ExampleYou can try to run the following code to learn how to use in operator in JavaScript −Live Demo var emp = {name:"Amit", subject:"Java"}; document.write("name" in emp); document.write(""); document.write("subject" in emp); document.write(""); document.write("MAX_VALUE" in Number); document.write(""); document.write("MIN" in Number);
Read MoreWith JavaScript RegExp find a character except newline?
To find a character except for a newline, use the Metacharacter. (period). You can try to run the following code to find a character −Example JavaScript Regular Expression var myStr = "We provide websites! We provide content!"; var reg = /p.o/g; var match = myStr.match(reg); document.write(match);
Read MoreWith JavaScript DOM delete rows in a table?
To delete rows in a table in JavaScript, use the DOM deleteRow() method.ExampleYou can try to run the following code to learn how to delete rows in a table. The code deletes rows one at a time −Live Demo function captionFunc(x) { document.getElementById(x).createCaption().innerHTML = "Demo Caption"; } One Two Three Four Five Six
Read MoreHow to create a table caption with JavaScript DOM?
To create a table caption, use the DOM createCaption() method.ExampleYou can try to run the following code to learn how to create table caption −Live Demo function captionFunc(x) { document.getElementById(x).createCaption().innerHTML = "Demo Caption"; } One Two Three Four Five Six
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