Java Script Date Object

Java Script Date Object
Created with the new Date( ) Methods allow you to get and set the year, month, day, hour, minute, second, and millisecond fields of the object constructor new Date( ) new Date(milliseconds) new Date(datestring) new Date(year,month,date[,hour,minute,second,millisecond ])

JavaScript Form Validation
validate the form submitted by the user because it can have inappropriate values can validate name, password, , date, mobile number etc fields provides you the facility the validate the form on the client side so processing will be fast than server-side validation

Date Objects <html> <body> current time: <p id="time"></p> <script> window.onload=function(){gettime();} function gettime() { var a=new Date(); var h=a.getHours(); var m=a.getMinutes(); var s=a.getSeconds(); m=checktime(m); s=checktime(s); document.getElementById("time").innerHTML=h+":"+m+":"+s; setTimeout(function(){gettime()},1000); } function checktime(i) { if(i<10) i="0"+i; return i; </script> </body> </html>

JavaScript-Regular Expression
A regular expression is an object that describes a pattern of characters. used to perform pattern-matching and "search-and-replace" functions on text Syntax /pattern/modifiers; Example var patt = /w3schools/i /w3schools/i is a regular expression. w3schools is a pattern (to be used in a search). i is a modifier (modifies the search to be case-insensitive).

Modifiers perform case-insensitive and global searches Modifier Description i Perform case-insensitive matching g Perform a global match (find all matches rather than stopping after the first match) m Perform multiline matching Brackets used to find a range of characters

Metacharacters

<html> <body> <p>Click the button to do a global search for word characters in a string.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var str = "Give 100%!"; var patt1 = /\w/g; var result = str.match(patt1); document.getElementById("demo").innerHTML = result; } </script> </body> </html>

Java Script Date Object

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Java Script Date Object

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