React Native: Remove Item From AsyncStorage
React Native’s AsyncStorage provides a light storage system where you can both store and retrieve stored items. But what happens when you no longer need these items in the storage?…
December 2020
Number Class in Java
Usually in Java when we work with numbers, we will represent these numbers with any of the available primitive data type, such as int, byte, long, short, double, float. Example…
React Native: Working With State
When working with React, in this case React Native, there are times when you might need a value to be globally accessible by a particular component and you, for some…
Javascript: Rest Parameters
The rest parameter is an ES6 syntax that is used to represent an indefinite number of elements as an array. See arrays in Java Example It can also be used…
Retrieve Data From AsyncStorage
The AsyncStorage presents a simple and elegant way for React Native developers to store and retrieve data. We’ve already covered what AsyncStorage is and how data can be stored. Now…
React Native: Store Items in AsyncStorage
The AsyncStorage lets you store some reasonable amount of data on users’ device. Let’s see how we can make that demonstration: The first thing is to add AsyncStorage to your…
React Native: Working With AsyncStorage
According to the React Native docs, AsyncStorage is an unencrypted, asynchronous, persistent key-value storage system that is global to the app. This means that data stored in AsyncStorage can be…
To Reverse A String: StringBuffer in Java
Java provides the StringBuffer and String classes. The String class is used to manipulate character strings that cannot be changed. To put it simply: objects of type String are read…
Working With XMLHttpRequest
The XMLHttpRequest is a Javascript object that is used to interact with web servers. The XMLHttpRequest() is a Javascript function that makes it possible for developers to fetch XML data…
Working With Fetch API
If you are writing a web application, there is every possibility that at some point you will have to work with external data. This can be data from your own…
Switch Case
A switch statement gives an expression a value to evaluate and several different statements to execute based on the value of the expression. It is a useful alternative to the…
Debugging Your Javascript Code
Web browsers generally have consoles, which are interactive command lines where you can print text and test pieces of code. This is where, for the most part, you’ll be debugging…
Pure And Impure Functions in Javascript
Pure Functions A pure function in Javascript is one that given the same input will always return the same output and does not have any observable side effect. This means…
Return Statements in Java
In a return statement in Java, we evaluate expressions, and as part of this evaluation, other methods may run in the process and types must match otherwise an error occurs.…
Access Modifiers in Java
Modifiers are keywords that are added to variables, methods and classes to change their meaning. There are two (2) types of modifiers: Access modifiers Non-access modifiers Access Modifiers There are…
Looping in Java
A loop statement allows the programmer to execute a statement or group of statements multiple number of times, based on the given conditions. Let’s take a look 4 types of…
5 Habits of a Security-Conscious Developer
Given the amount of security breaches that go on everyday, there is hardly any security-conscious developer (or any developer for that matter) that will say that security isn’t important. In…