JavaScript Loops - for. Understanding of loops is very important for every programmer.
Please pay attention to this lesson. We use loops when we want to repeat some algorithm. For example, we want to print the same text multiple times. We could help Bart to write it for him: for (var i = 0; i < 11; i++) { console.log('I will learn to code. Copy & paste to the code editor Amazing, huh? The first command is definition of variable i. The second command (i < 11) is condition. In the last command (i++), we increment value of the i variable by 1. Notice, we write semicolon after the first and the second command. Look at another example. For (var i = 0; i < 11; i++) { console.log(i); } So you can see that i is 0 in the first iteration and it increases up to 10. Notice that loop runs 11 times and then the code after loop runs: for (var i = 0; i < 11; i++) { console.log(i); } console.log('done'); Notice, we can increment variable i by any value.
For (var i = 0; i < 11; i = i + 2) { console.log(i); } Infinite loop.
Bakbone.js. Java EE. Software Development & Entrepreneurship Tutorials. AngularJS. Introduction to Electrical Engineering and Computer Science I. Python. DeveloperWorks : Training : Knowledge path : Overview. Linux Command Line - Vim. 10 Object Oriented Design principles Java programmer should know (guest post) This article was originally posted by Javin Paul at Javarevisited.
Object Oriented Design Principles are core of OOPS programming but I have seen most of Java programmer chasing design patterns like Singleton pattern, Decorator pattern or Observer pattern but not putting enough attention on Object oriented analysis and design or following these design principles. I have regularly seen Java programmers and developers of various experience level who either doesn’t heard about these OOPS and SOLID design principle or simply doesn’t know what benefits a particular design principle offers or how to use these design principle in coding. Bottom line is always strive for highly cohesive and loosely couple solution, code or design and looking open source code from Apache and Sun are good examples of Java design principles or how design principles should be used in Java coding.
Object oriented design principle 1 – DRY (Don’t repeat yourself) Always favour composition over inheritance if possible.
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