In this tutorial we learn javascript from the beginning. I will be using code playground such as jsfiddle.net to show you live code examples covering following topics
– Javascript how to define a variable
– Javascript how to define a string
– Javascript how to define a number
– Javascript how to define a object
– Javascript how to define a null
– – Javascript what is undefined?
– Javascript what is null?
– Javascript how to write hexadecimal, octal, floating point, double, Boolean ,
– – Javascript how to add properties to an object
– Javascript how to properties to an array
Keywords:
JS, Javascript, java script, java script tutorial , javascript tutorial, js tutorial, HTML5, techsith, learning javascript, javascript 101, javascript how to get started, Javascript introduction, javascript fundamentals,
Original source
7 responses to “javaScript tutorial basics fundamentals ( data types string numbers objects null undefined )”
where are you from?
Gotta say, this was a very professional, basic guide on JavaScript type usage. I was very impressed, as the speaker managed to speak slow and clearly enough to communicate effectively while transitioning through topics quickly enough to not notice the half hour runtime.
where more sir?
please more upload video for javascript sir
could you please share this PPT with us ? Thank you.
NaN comes up when an object var has properties that could compute to a number like .length and other string methods.. I see NaN as a js helper to fix bugs fast as it makes you locate the error in your code faster to where you didn't parse a number to a method of function that depends on the calculation..
NaN is like a valueless abstract number for any value that is not a number.