slidenerd Learn Programming The Easy Way

#5 JavaScript String 0

#5 JavaScript String

What do we discuss in this article? The String Type Character Literals String Conversions The String() Function A] The String Type A sequence of characters [16 bit Unicode characters to be precise] is called a String in JavaScript. Strings can be enclosed within double quotes or single quotes in JavaScript.


Tut#4 JavaScript Numbers, Range, NaN, Floating Point Values, and Conversions 0

Tut#4 JavaScript Numbers, Range, NaN, Floating Point Values, and Conversions

What is the maximum and minimum number you can work with in JavaScript? What is NaN and Infinity in JavaScript? How to convert Strings to a numeric format using the Number(), parseInt() , parseFloat() functions. What are the rules for conversion of a datatype to a numeric value using the Number function? What are the rules for converting a String to a number using the parseInt() or parseFloat() function. How can you check if a given value is a number or not in JavaScript?

javascript undefined typeof null boolean 0

Tut#3 JavaScript Data Types Part 1: Undefined, Null, Boolean and TypeOf

When does a variable get the value of undefined? How and when to use the special value ‘null’ in JavaScript? Why null==undefined in JavaScript? How to use a variable with only 2 values: true and false termed as a boolean in JavaScript? How to use the typeof operator to determine the data type of a given variable? What are the different rules of conversion of a variable to a boolean in JS? What values does the typeof operator return for each data type in JS?

Javascript data types 2

Tut#2 JavaScript Variables

What are variables in JavaScript? How can you define multiple variables in the same line and assign values to them at the same time? What are the data types in JavaScript: undefined, boolean, number, string, null, and Object? Why variables are loosely typed in JS and how does that affect the behavior of your code?

js syntax keywords, statements, comments, identifiers 0

Tut#1 JavaScript Syntax: Identifiers, Comments, Statements and Keywords

How does case sensitivity affect your JavaScript code? Why True is not equal to true in JavaScript? How can you use single-line or multi-line comments in JavaScript to make notes of your code for your reference in the future? What are identifiers in JavaScript? What are the naming rules for identifiers in JS? What are statements in JS? What are keywords in JavaScript?

android database crud example layout 3

Tut#5 Part 3 Android Database without SQLite Code: Bulk Insert and Read All Queries

How to perform optimized bulk insert in Android database without writing SQLite code using the ActiveAndroid library? How to display all the values from this database using select operation from one or more tables with this library? How to design a dynamic UI that builds Views programmatically to let the user perform a bulk insert? How to save orientation of a dynamically generated View? How to use TAGS to load data from programmatically created views in Android and how to use IDs to save data on orientation change?

active android show all 7

Tut#5 Part 1 Android Database Without SQLite Code: Using ActiveAndroid Library Basics

How to write database code in Android without SQLite using ActiveAndroid library? How to download and install this library? What configuration changes need to be done inside the AndroidManifest.xml to use this library? How to use simple POJO classes in Java to make database columns and tables with the @Table and @Column annotations. How to save data to database using ActiveAndroid library? How to display all the data from one or more tables?