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75 Answers
How to zip unzip folder ubuntu command?
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Aspirant Programmer
Before doing zip or unzip a folder or files, you will need to install zip using below command if it is not already install: $ sudo apt install zip unzip Now you can use below syntaxes to create a z...
How to change your mysql root user password?
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Aspirant Programmer
To update the mysql root user password you will need to follow below steps and it will be updated without any problem. 1- First stop the mysql server  sudo /etc/init.d/mysql stop 2- Now run comman...
How to update mysql user password using command?
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Aspirant Programmer
I assume you have already a mysql user which password want to update or change. You will need to login into your mysql server with your root user which has administrative privileges. So, follow below ...
Async/await does not work within forEach loop in nodejs?
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Aspirant Programmer
We have also faced such problem where we want to loop through array of objects and further get a detailed information about user from user id and add this into all objec...
How to install free SSL in website?
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Aspirant Programmer
Suppose you have already a website running on http protocol with apache  ubuntu server and you want to install a free SSL in your website then  follow the below steps a...
How to install SSL certificate on ubuntu 18.04 apache server?
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Aspirant Programmer
I assume you have setup your apache2 server and websites is running on http protocol.  Now you want to install SSL and get your website run on https only.  For this, y...
How to create a rest api in wordpress?
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Aspirant Programmer
Wordpress allow us to create a rest api that can be used in application like mobile android, iOS apps or any other javascript frameworks. There is action hook "rest_api_init" which is used to create...
What is data structure in programming languages?
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Aspirant Programmer
Data sctructure is how we store, organize and group the data so that it can be used efficiently.  There are many ways of storing data in programming languages like linked...
What is annotation in javascript?
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Aspirant Programmer
Annotation is about specifyng type of the something like variable.  We can understand it better referring below example:   var a = 10; var b = "Hello"; var c = True; ...
What is Prototypes in javascript?
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Aspirant Programmer
Let us understand the requirement of using prototype first.  Suppose you have a person class and there are two properties inside it.  You have created multiple objects and...