learning-journal

Kyle's Learning Journal

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Project maintained by AtkinsonKyle Hosted on GitHub Pages — Theme by mattgraham

Javascript Notes

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script

• When the browser comes across script, it stops to load the script then checks if it needs to do anyhting.
• script needs to be placed precisely where it needs to be!

Variables

var quantity;

• “var” is the variable keyword
• “quantity” is the variable name
• Cannot start with a number or contain - or .

Calling the Method of an Object

document.write('Wassa Dude!');

• “document” is the object and represents the entire webpage.
• ”.” is the member operator and accesses the memmbers of an object using a dot between the object name and member you want to access.
• “.write(‘Wassa Dude!’)” is the method and allows new to content to be written into the page where script element sits.
• “‘Wassa Dude!’” is the parameter and is a piece of information the method requires in order to work.

Data Types

• Numeric data types
  • handles numbers
• String data type
  • consists of letters and other characters
• Boolean data type
  • Can have one of two values, true or false