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I have learned about JavaScript local and global variables. I know why global variables should be avoided, but I have no idea how to achieve the same result using only local variables. My goal is to use JavaScript best practices while coding.
I want to use global variables correctly in my script. How can I achieve this keeping in mind JavaScript best practices? I do not want to follow the old school way: ,
We all know the usage of both local and global variables are valid. However, at some instances it is quite hard to work with global variables. What are the alternatives available and why it is hard to work with global variables?
I want to animate an image on the web page. Which properties and methods are used in JavaScript to achieve basic animations? On button click, I want to animate the following image on the right: ,
The following is my String: , With JavaScript, I want to check whether the above string contains the substring “point” or not? Which method should I use in JavaScript to achieve this?
A new keyword “use strict” introduced in JavaScript. Is it a literal expression? What is the usage of adding a strict mode in a JavaScript program? Will it get declared in the following way inside<script> tag: ,
What is to be used in JavaScript to remove a property. The following are the values: , On printing the points of the cricketer, I want to show undefined.
