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Here's a list of tutorials, articles, code snippets and example links of various languages on my blog.

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18 js array methods for beginnersa practical usage of javascript spread operatoradd attribute contenteditable to p element using javascriptadd html code to a div element using javascriptadd onclick event to table cells using javascriptadd text to marquee element dynamicallyajax post and get method examples in javascriptappend or add text to div using javascriptarray flatmap method exampleasync await create a simple dropdown menu using xml dataauto refresh div every few seconds using javascript and ajaxauto refresh page every 10 second using javascript setInterval methodcapture value changes in javascript using onchange attributecapture webcam picture with webcamjschange label text on button click using javascript or jquerychange or manipulate iframe contents using javascriptcheck if array has a specific value using javascriptcheck if div contains a text or word using javascriptcheck if div has scrolled to the bottom using javascriptcheck if element is an image using javascript tagname propertycheck if textarea contains a particular word using javascriptcheck if the clicked element is a div or notcheck if url contains a given string using javascriptcheck image width height and type before uploading using javascriptclear all input field values inside a div using javascript and jqueryclose browser tab using javascriptcolumn charts using highcharts with data from json filecontenteditable divconvert array to html table without jqueryconvert data in json file in an array using javascript or jqueryconvert days and month to string javascriptconvert excel data into jsonconvert html table to pdf using javascript without a pluginconvert text to speech using web speech apiconvert your form data to pdf using javascriptcreate an element with class using javascriptcreate ul and li elements dynamically using javascriptdesign a simple digital clock with date using javascriptdifference between clientheight and offsetheightdifference between innerhtml and innertextdisable or enable submit button using javascriptdisable submit button after first click using javascriptdynamically add checkbox to a table cell using javascriptdynamically add remove rows to html table using javascript and save datadynamically create checkboxes based on textbox values using javascriptdynamically create html elements using createElement methoddynamically create marquee elementdynamically insert or add a smiley using javascriptenable disable checkbox on dropdown selection using javascript jqueryes6 map functionexpand select options automatically on page loadfetch data from json file display in table using async and awaitfilter only 4 letter words from array in javascriptfilter out only numbers in an array using javascriptfind even numbers in array using flatmapfind even numbers in array (3 methods)find the length of a string in javascriptfirst and last day of a given month in javascriptgenerate random number within a given rangegenerate random numbers in javascriptget all elements inside div using javascript children propertyget all the elements in a div with specific texts as id using javascripthow to get element positionget first and last element in an arrayget only texts from array values in javascriptget select dropdown list selected texts using javascript and jqueryget select dropdown list selected value using javascriptget specific values from an array of objects in javascriptget textarea values with line breaks using javascriptget the first and last character in a string using javascriptget the name size count of multiple files using javascriptget xml data from file using javascript async and awaithide html element by class name using javascripthow to add another class to elementhow to add dash after every 3rd character using javascript or jqueryhow to add element to body section using javascripthow to change element class name using javascripthow to change font size with range inputhow to check if a number positive or negative in javascripthow to check if a variable in javascript is undefined or nullhow to check if checkbox is checked or not using plain javascripthow to check if scroll have reached half pagehow to check if td in a table has child nodeshow to convert json string to json object in javascripthow to create a simple crud application using only javascripthow to disable a hyperlink using javascript or jqueryhow to find minimum value of an array objecthow to find the smallest odd number in an arrayhow to find values from last in array using javascripthow to get all li elements in ul using javascripthow to get all textarea in a form using javascripthow to get all textboxes in a form using javascripthow to get element from an iframe using javascripthow to get elements by class name using plain javascripthow to get ids of div element inside a div using javascripthow to get numbers from a string in javascripthow to get the filename from url in javascripthow to get the length of an object in javascripthow to get value of codemirror textareahow to get x y position of html element in javascripthow to print a pdf document using javascripthow to print contents of a div elementhow to read data from external json file in javascripthow to read data from html table using javascripthow to read json from html file inputhow to redirect page using javascripthow to remove class name from elementhow to remove commas from array in javascripthow to remove empty slots in javascript arrayshow to reverse string in javascript using while loophow to rotate an image dynamically using javascripthow to save form data in a text file using javascripthow to search array in javascript like sql like statementhow to set div empty in javascripthow to show hide or toggle a div element using javascripthow to shuffle characters in a stringhow to use array reduce method on json objecthow to use data attributes in javascriptinput file change event not workinginsert an element after another element using javascriptlimit character input in textarea using javascriptnavigator online propertyoverride important style property in javascriptpadstart method with examplepass multiple image references to user defined function in javascriptpopulate json data to html table using javascriptpopulate select dropdown list with json data using javascriptprevent dragging image using javascript and jqueryprint div content with image using javascriptprint html table with image using javascriptpush xml attributes into an array using javascriptread text file from url in javascript using async awaitredirect page after a delay using javascriptredirect to another page with multiple parameters in javascriptreduce method with examplesregex d metacharacter exampleremove duplicates in javascript array using es6 set and fromremove whitespace from string using regex in javascriptreplace all instances of a particular string in textareareplace hyphen in a string with space in javascriptreplace string with another string in the url bar using javascript jquerysay good morning afternoon evening using javascriptselect element set focus or expand options on page load using javascriptset or get value to a label using javascriptset the width and height of an element using javascriptshow images from urls in a json file using javascriptsort a nested array in reverse order javascriptsort a string in reverse order in javascriptsplit a string into multiple lines using javascriptspread operator example add new items to arrayswitch statement for multiple cases in javascripttoggle div based on dropdown list selection using javascript or jqueryuncaught referenceerror variable is not definedusing async await to read data from an external json fileusing contains method to check if an element is a descendantusing data attributes of an element to get data from json fileusing filter with regexp object to search in arrayusing map to get only numbers from an array of valueswrite a function to add rows to a tableyoutube api embed video with mute sound setvolume onstatechange eventextract data from an xml file using javascriptrestrict (disable) browser back button using javascriptconvert all values in a textbox into lowercase dynamically

Methods
.charAt().reduce()Array methods.map().replace().substr().lastIndexOf().split() and .pop().getElementById().getElementsByTagName().hasChildNodes().includes().toLowerCase()

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add or insert a new row in excel on button click using vbaautomatically add one month from previous date in excelautosum multiple ranges in excel with multi select and alt keycalculate age in excel using just the yearcalculate subtotals for a range in excel using vbacapture filter change event in excel using vbachange textbox border color on condition using vbachange the color of shape in excel based on cell value using vbacheck if a cell in excel has number using vbacheck if cell in excel has number using regex vbacheck if worksheet exists using vbacompare two text strings in excel using exact functionconnect and pull data from sql server in excel using vbaconvert worksheet data into a table using vbacopy data from closed excel workbook without openingcopy data from text file to excel using vbacopy data from word file to excel using vbacount number of sheets in excel filecount total number of characters in a cell in excelcount total number of words in a cell or range in excel using vbacreate a pie chart in excel using worksheet datacreate charts in excel vba using worksheet datacreate controls dynamically in userform and save data in sql servercreate multiple line charts in excel using vbacreate named cell or named range in excelcreate progress bar in excel using userform vbacreate subfolders in another folder and copy source files to the subfoldersdelete blank rows in excel with the click of a buttondynamically create controls in excel userform and save dataexcel image function now insert a picture in cell using a formulaexcel macro to pull data from another workbookexport multiple charts from excel worksheet to powerpoint using vbaextract contents from html element of a webpage in excel using vbaextract filename from filepath in excel using vbaextract or copy table data from word to excel using vbaextract pattern from string in excel using vba and regexfill a web form from excel using worksheet data in vbafill combobox in excel with values from select dropdownlist using vbafind and remove hyperlinks in excel using vbafind duplicate in excel using vba macroflash fill feature how to show last 3 digitsformula in excel to get half yearly quarterly and yearly dateformula to calculate percent change in excelformula to calculate sales percentage in excelformula to get the sum of unique valueshighlight an entire row based on cell value using vba conditional formatinghow to add and find hyperlinks in excel using vba macrohow to add events to dynamically created controls in excel using vbahow to add text to shapes dynamically in excel using vbahow to calculate cells with alphanumeric values in excelhow to change column width and row height in excel using vbahow to change number to comma separated valueshow to check if a folder exist using vba macro in excelhow to check if control is a checkbox in vbahow to check if workbook is open or not using vbahow to copy data from multiple sheets to single sheet using vbahow to copy data from one excel file to another using vbahow to create cascading combo box in excel using vbahow to create multiple pie charts in excel using vbahow to find duplicate in excel and highlighthow to get stock quotes in excel using vba macrohow to open a file dialog box in excel using vbahow to parse outlook emails and show in excel worksheet using vbahow to remove funcres xlam in excelhow to run a macro when drop down value is selectedhow to show a progress bar in excel using vbahow to trap vlookup na errors with iferror in excelhow to use filesystemobject in excel vbahow to use nested if function with other functions in excelhow to use replace function in excel vbahow to use vlookup function in vbahow to use vlookup function with if statement in excelimport outlook emails and show in word doc using vbainsert object in outlook and display as icon in excel using vbaisdate alternative in excelkeyboard shortcuts in excelloop through all textboxes in userform and clear the values in vbamacro to email multiple tables in excel as html table in bodymacro to send email from excel with table in bodymacro to send emails automaticallymerge multiple excel files in single workbook but different sheets in vbamerge multiple rows in one cell repeatedly using vbaopen word from excel and copy data word doc using vbaread multiple excel files and merge data to single file using vbarun a macro by clicking a hyperlink in excelrun a macro when combobox value is selectedsend email from excel using vba and outlooksend email to multiple recipients from excel using outlooksequence function example quickly add days number in sequenceshow hide entire column on cell click in excel using vba macrosimple vba macro to merge and combine cells in excelsplit a string into array of characters in excel using vbasplit text from one cell to multiple cells using formulasplit text with carriage returns to multiple columns using vba macrousing excel address function to get cell numbers of specific textsusing filesystemobject to create write read text file in excelvba macro to find matching records between two rangesvba send email from excel using gmailweb scrapping fill a web form from excel using vbawrite data to text file using excel vba

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add image to a div and zoom the image at the centerHow to add CSS !important Style Property dynamicallyadd/remove multiple or single select optionsadd text to div using appendto() methodbinding click event to dynamic elementcascading select dropdown list using json datachange css display property to none or blockcheck if an element is display none or blockcheck if checkbox is checked or notcheck if image has loaded or notcheck if select option or dropdownlist is selectedcheck image dimensions before uploadingcheck or uncheck checkbox in a repeater controlcheckbox onChange event exampleclear contents of div with a delay using settimeout methodclear textbox on focus using javascript or jqueryhow to clone a textboxclone textbox without its valuecreate a facebook like notificationscreate an exploding and imploding effectcreate smooth scrollingcreate ul li tags using json and jquerydelay ajax call for few seconds using settimeoutdifference between jquery empty and remove methodsdifference between width and outerwidth in jquerydisable or enable submit button with jquerydynamically add image to div using append methoddynamically add/remove css class of link tagsdynamically add rows to HTML tabledynamically add textbox in jquery and save data to sqlserver using webmethoddynamically bind populate select element with json data using ajaxdynamically create html ul li elementsexport html table to excel using table2excel plug infetch data from json file and convert to HTML tableget file size before uploading using javascript and jqueryget min and max value from xml using ajaxget span tag inside li using jquery and javascripthow to check if element visibility property is hiddenhow to disable or enable select dropdown listhow to display images retrieved from a json filedynamically unselect all values in input box using select2how to find an element by its data attribute valueget ids of every div elementhow to get the number from an elements id using replace() methodhow to get values from cloned input fields in jqueryhighlight input words using jqueryui autocomplete widgethow to replace all instances of string in textareadynamically set image width and heightiterate loop through elements arrays object with jquery each functionjquery fadeing methods like fadein fadeout fadetogglejquery jcarousel plugin image slider using xmljquery prop method examplesjquery slidedown slideup and slidetoggle methodslimit the draggable area using jquery uimake jquery contains selector case insensitivemove an element at mouse click positionmultiple selection using select2 plugin with json datapinterest like image layout using wookmark plugin jqueryread json file push data into array and convert to html tablerefresh div contents without reloading the pagereload or refresh web page after ajax successset contenteditable property to trueusing mousemove() method to capture mouse pointer locationset or assign value to a label dynamicallyshow a text over an image at mouse locationtwitter bootstrap typeahead ajax example with webapiui datepicker widget change date formatextract and read data from xml using ajaxmake html dom elements draggable and resizeabledisplay autocomplete dropdown list on focusremove class attribute from a div elementremove style attribute from div element

Methods
.prop().mousemove().change().clone().fadeIn(), .fadeOut() and .fadeToggle().replace().append().appendTo().getJSON()

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add jquery datepicker control to gridView row in aspdotnetbind stored procedure with sqldatasource gridview repeatercall javascript function from code behind without scriptmanagercalling webmethod with multiple parameters from javascript ajaxcannot find javascriptserializerconvert csv to xml in aspdotnet csharp using streamreader and datatableconvert date format dd mm yyyy to mm dd yyyy in csharp aspdotnetcopy gridview rows to datatable in aspdotnetcreate multiple textboxes in aspdotnet save data jquery ajax webmethodcreate zip files in aspdotnetdelete files older than one day using csharpdelete images older than one hour using csharpdraw charts with highcharts using jquery ajax and webservicedropdownlist examples with cascading and data bindingencrypt and decrypt connection strings in webconfig visual studio 2010error no access control allow origin header is presentexception sys webforms pagerequestmanagerservererror unknown error 500export gridview to excel in aspdotnetextract and display image from folder using aspdotnetextract data using webapi jquery ajax and display data with pagingextract image files from server folder and display in div using aspdotnetfetch json from file and display in webgrid using csharp and vbget file size using csharp and vbget filename and extension from url using csharp and vbhow to add items dynamically to dropdownlist with button clickhow to align placeholder text in center in aspnethow to bind jquery datepicker control to aspdotnet textbox controlhow to call webmethod using javascript ajaxhow to create or remove folders and subfolders in aspdotnet csharphow to export gridview data to ms word in aspdotnethow to make an ajax call from a webgrid in mvc for csharp and vbhow to read data from csv file in aspdotnet with streamreader classhow to use aspdotnet regularexpressionvalidator on a textboxhow to use htmlagilitypack in csharpimplement ajax cascading dropdownlist without web serviceimport data from ms word table to a gridview in aspdotnet csharpjavascriptserializer example read json from file and show in gridviewjquery functions not working after postback using updatepanelparse a web page with htmlagilitypack in aspdotnetperform crud operations in an mvc application using entity frameworkpopulate dropdownlist with xml using dataset in csharppopulate select element with data from sql server in aspdotnet csharppopulate webgrid based on selected dropdownlist value in mvc using razorprogrammatically create a table in sqlserver using aspdotnet csharpprogrammatically create and add dropdownlist to gridview in csharpread json file and convert data into html table in aspdotnet mvcremove image from browser cache when image changes using aspdotnetsend emails in aspdotnet csharp using hotmail smtp mail serversend emails with multiple attachments in aspdotnet using hotmail smtp mailshow images using a repeater control in aspdotnetvalidate max length in textbox with multiline using regular expressionvalidate password max and min length using regular expressionwebgrid example in aspdotnet mvc 4 csharp and vbDataTable in C# and VBhow to resize an image using C# (and VB) without losing qualitydynamically add linkbutton to a gridview using C# (and VB)read and write xml data using C# (and VB)export data to excel and show running total using C# (and VB)extract and display files from folder and bind with gridviewchange background or text color of GridView cell on certain conditionPopulate HTML5 datalist (a lightweight autocomplete control) dynamically using C#

XMLHttpRequest Object