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Articles by Arnab Chakraborty
Page 2 of 3
How do I use jQuery effects?
For hiding and showing the div, you can use hide and show method.For hiding$('#id1').hide();For showing$('#id1').show();Example showhide $(document).ready(function () { $('#btn1').click(function () { $('#id1').hide(); }); $('#btn2').click(function () { $('#id1').show(); }); }); I Am A Simple Paragraph Hide Show MethodDescriptionanimate()Runs a custom animation on the selected elementsclearQueue()Removes all remaining queued functions ...
Read MoreHow to disable/enable an input box with jQuery?
We can easily disable input box(textbox,textarea) using disable attribute to “disabled”.$(‘elementname’).attr(‘disabled’,’disabled’);To enable disabled element we need to remove “disabled” attribute from this element.$(‘elementname’).removeAttr(‘disabled’);Example ed $(document).ready(function () { $('#btn1').click(function () { $('input').attr('disabled', 'disabled'); }); $('#btn2').click(function () { $('input').removeAttr('disabled'); }); }); Disable Enable
Read MoreHow to check if a div is visible using jQuery?
You can use .is(‘:visible’) selects all elements that are visible.Example divvisible $(document).ready(function () { $("button").click(function () { var dim = $('#div1').is(":visible"); if (dim == false) { $('#div1').css({ "display": "block", "color": "red" }); } }); }); Div is visible Click Here
Read MoreHow to get current URL in jQuery?
For getting the current URL you can use attr() method or window.location.Example url $(document).ready(function () { $("button").click(function () { alert($(location).attr('href')); alert(window.location); }); }); Display URL
Read MoreHow can I get the ID of an DOM element using jQuery?
In jQuery attr method is use to get the id attribute of the first matching element.$("btn1").attr("id")In your exampleExample iddom $(document).ready(function () { $('#btn1').click(function () { alert( $('#test').attr('id')); }); }); Click Here
Read MoreHow to get the content of a textarea using jQuery?
Here I am using one textarea and one button.The first textarea is used for user input then click the button and display the value in the alert box.Example Live Demo $(document).ready(function () { $("button").click(function () { var dim = $("#txt").val(); alert(dim); }); }); Click Here
Read MoreHow to count number of rows in a table with jQuery?
Example Live Demo table table,th,td { border:2px solid black; margin-left:400px; } h2 { margin-left:400px; } button { margin-left:400px; } $(document).ready(function () { $("button").click(function () { var rowcount = $('table tr').length; alert("No. Of Rows ::" +rowcount); }); }); HTML TABLE NAME AGE DD 35 SB 35 AD 5 AA 5 Click Here
Read MoreWhy we should use whole string in Java regular expression
In Java regex matches() matches the input string against the whole string as it add a ^ and $ at the end of the input string.so it will not match the substring. So for matching substring, you should use find().Exampleimport java.util.regex.*; class PatternMatchingExample { public static void main(String args[]) { String content = "aabbcc"; String string = "aa"; Pattern p = Pattern.compile(string); Matcher m = p.matcher(content); System.out.println(" 'aa' Match:"+ m.matches()); System.out.println(" 'aa' Match:"+ m.find()); } }Output'aa' Match:false 'aa' Match:true
Read MoreHow to match a line not containing a word in Java Regex
ExampleLive Demoimport java.util.regex.Matcher; import java.util.regex.Pattern; public class NoRegTest { public static void main(String[] args) { String s="^fun"; Pattern pattern = Pattern.compile(s); Matcher matcher = pattern.matcher("Java is fun"); if(!matcher.find()) { System.out.println("not found"); } } }Outputnot found
Read MoreHow to extract a group from a Java String that contains a Regex pattern
How to extract a group from a Java String that contains a Regex patternimport java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexTest { public static void main(String[] args) { Pattern pattern = Pattern.compile("fun"); Matcher matcher = pattern.matcher("Java is fun"); // using Matcher find(), group(), start() and end() methods while (matcher.find()) { System.out.println("Found the text \"" + matcher.group() + "\" starting at " + matcher.start() + " index and ending at index ...
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