Difference between == and === in javascript
== and === fall under the category of javascript comparison operators since they are used for comparing two values. == operator is also called equals operator while === is called…
How to iterate dictionary in python
A dictionary in python is a collection of key-value pairs where each key is associated with a value. It is required to loop over elements of a dictionary either to…
How to resolve Unknown collation: ‘utf8mb4_0900_general_ci’ error 1273 in MySQL
Sometimes when importing a database dump from another MySQL server or executing an SQL query that uses a collation, you might encounter Unknown collation errors something like below ERROR 1273…
How to disable button in jQuery
If a button is disabled, it will not perform any action when clicked. Disabling a button is required when you do not want the same action to be performed again…
How to check if a value is number in javascript
It is often required to check the type of a value before performing some operation. Example, it would be better to check if the value of a variable is number…
How to resolve “Data path “” should not have additional properties(es5browsersupport)” error in angular
If you have faced or are facing the below error while running your angular application, then this post is for you. Schema validation failed with the following errors: Data path…
How to resolve “node_modules/rxjs/Observable” has no exported member ‘Observable’ error in angular
If you are working on an angular application, then you should have used Observable from RxJS library. It might happen that when you start using Observable, you might encounter this…
spread operator in javascript
spread operator is applied to javascript arrays or any value that can be iterated such as a string or an object. It spreads or extracts the elements of the iterable.…
How to use filter method in arrays in javascript
Javascript filter function is applied to arrays and is used to get an array of only those elements which satisfy a particular requirement or condition. filter does not modify the…