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Who is Who
Alankritha Ammu
has Published
68
Answers
What is the role of Keyboard Event shiftKey Property in JavaScript?
HTML
Javascript
Programming Scripts
Alankritha Ammu
Published on 26-Feb-2018 16:37:23
The altkey property is used to show whether SHIFT key is pressed or not when key event was triggered.ExampleYou can try to run the following code to learn how to implement shiftKey property in JavaScript.<!DOCTYPE html> <html> <body> <input type = "text" onkeydown = "funcShiftKey(event)"> ...
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What is JavaScript Bitwise OR (|) Operator?
HTML
Javascript
Programming Scripts
Alankritha Ammu
Published on 26-Feb-2018 14:30:15
If one of the bits are 1, then 1 is returned when Bitwise OR (|) operator is used.ExampleYou can try to run the following code to learn how to work with JavaScript Bitwise OR Operator.<!DOCTYPE html> <html> <body> <script> document.write("Bitwise OR Operator<br>"); ...
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How to return a number indicating the Unicode value of the character?
HTML
Javascript
Programming Scripts
Alankritha Ammu
Published on 26-Feb-2018 13:00:10
The charCodeAt() method returns a number indicating the Unicode value of the character at the given index. Unicode code points range from 0 to 1, 114, 111. The first 128 Unicode code points are a direct match of the ASCII character encoding.The following parameter is supported by charCodeAt(index) −index − An integer ...
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Set the minutes for a specified date according to universal time.
HTML
Javascript
Programming Scripts
Alankritha Ammu
Published on 26-Feb-2018 11:47:28
JavaScript date setUTCMinutes() method sets the minutes for a specified date according to universal time.The following are the parameters for setUTCMinutes(minutesValue[, secondsValue[, msValue]]) method −minutesValue − An integer between 0 and 59, representing the minutes.secondsValue − An integer between 0 and 59, representing the seconds. If you specify the secondsValue ...
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Match Unicode character specified by the hexadecimal number XXXX.
HTML
Javascript
Programming Scripts
Alankritha Ammu
Published on 26-Feb-2018 11:18:56
To match a Unicode character specified by the hexadecimal number xxx with JavaScript Regular Expression, use the following −\uxxxxExampleYou can try to run the following code to match the hexadecimal number character xxxx. It matches the hexadecimal number 53 i.e. S −<html> <head> <title>JavaScript Regular Expression</title> ...
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How can we create a MySQL view with RIGHT JOIN?
MySQL
MySQLi
Database
Alankritha Ammu
Published on 22-Feb-2018 15:08:48
To illustrate the making of MySQL view with RIGHT JOIN we are using the following data from ‘Customers’ and ‘Resreve’ tables −mysql> Select * from Customers; +-------------+----------+ | Customer_Id | Name | +-------------+----------+ | 1 | Rahul | | 2 ...
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What is MySQL event and how it is related to trigger?
MySQL
MySQLi
Database
Alankritha Ammu
Published on 22-Feb-2018 12:17:27
A MySQL event is a task that rums based on a predefined schedule therefore sometimes it is referred to as a scheduled event. In other words, we can say that the MySQL event schedule is a process that runs in the background and constantly looks for the events to execute. ...
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How can we use a subquery that contains a reference to a table that also appears in the outer query?
MySQL
MySQLi
Database
Alankritha Ammu
Published on 21-Feb-2018 17:20:41
A subquery that contains a reference to a table that also appears in the outer query is called a correlated subquery. In this case, MySQL evaluates from inner query to the outer query. To understand it we are having the following data from table ‘cars’ −mysql> Select * from Cars; ...
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What are MySQL group functions?
MySQL
MySQLi
Database
Alankritha Ammu
Published on 21-Feb-2018 16:20:33
Group functions are the function which applied to a group of rows or in other words group functions operate on sets of values. The following table gives the Description of MySQL group functions −Sr.No.Name & Description1AVG()It returns the average value of the argument.2BIT_AND()It returns bitwise AND.3BIT_ORIt returns bitwise OR.4BIT_XOR()It returns ...
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What MySQL returns if we provide value larger than 255 as argument to MySQL CHAR() function?
MySQL
MySQLi
Database
Alankritha Ammu
Published on 21-Feb-2018 12:54:03
MySQL converts the arguments of CHAR() function which is greater than 255 to multiple result bytes. For example, CHAR(260) is equivalent to CHAR(0, 1, 0, 4). It can be more clear with the help of following statements −mysql> Select HEX(CHAR(256)), HEX(CHAR(1, 0)); +----------------+----------------+ | HEX(CHAR(256)) | HEX(CHAR(1, 0)) | +----------------+----------------+ ...
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