Npm node js can't find package.json

Npm node js can't find package.json

The most important things in your package.json are the name and version fields. Those are actually required, and your package won't install without them. The name and version together form an identifier that is assumed to be completely unique. Changes to the package should come along with changes to the version.

npm --version
npm install express
npm init -y

More reference:

https://docs.npmjs.com/files/package.json

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PHP sessions default timeout

We are settind the Session Time out in Php as mentioned as below:

session.gc_maxlifetime = 1440

(1440 seconds = 24 minutes)

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differences between InnoDB and MyISAM

Differences between InnoDB and MyISAM 

   In MySQL, major difference of InnoDB and  MyISAM are given below. MyIsam is supporting the table level locking in database. But InnoDB is supporting the row level locking in the database. MyIsam is supporting the FULL TEXT SEARCH functionality and InnoDB also supporting the FULL TEXT SEARCH after MySQL Version of 5.6.4.

 

 MyISAM Engine : 

1. It supporting Table-level Locking
2. It supports FULLTEXT SEARCH functionality
3. It is designed for need of speed
4. It is not supporting foreign key constraints
5. It is storing the data as its tables, data and indexes in diskspace using separate three different files formats. (table.FRM, table.MYD, table.MYI)
6. It is not supporting transactions [ We can't COMMIT and ROLLBACK the comments ]
7. It recovering data by using Requires full repair/rebuild of indexes/tables
8. It is storing the data as no ordering format

INNODB Engine : 

1. It is supporting Row-level Locking
2. After MySQL Version 5.6.4 ,Supporting FULL TEXT SEARCH functionality
3. It is designed for maximum performance when processing high volume of data
4. It is supporting foreign key constraints
5. It is supporting transactions [ We can COMMIT and ROLLBACK the comments ]
6. It stores data as tables and indexes in a tablespace
7. It is Auto recovery from crash via replay of logs
8. It is stored the data row as primary key order

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CwebP Unsupported Color Conversion Request:

CwebP Unsupported Color Conversion Request:

    When i am creating WebP images, that time triggering the error as "cwebp unsupported color conversion request, Error Could not be process file".

 Error: 

    $imageName  = "ilikekaraikudi.jpg";
    $webpimgName  = "ilikekaraikudi.webp";
 
   cwebp -q 0 ".$imageName." -o ".$webpimgName.
   Unsupported color conversion request
   Error! Could not process file ilikekaraikudi.jpg     
   Error! Cannot read input picture 

 

  Solution:

    we can try converting to RBG color-space via ImageMagick (convert) or any other image-editor tool.

    exec("convert -colorspace RGB ".$imageName." ".$webpimgName . " ");

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