Javascript language is case sensitive which means that it strictly operates within a declared and predefined set of rules. A javascript syntax is something that should be exactly as it is in a written statement.
For example:
var x, y, z; //declaration
x = 10; //Assignment
y = x;
z = x/y; //operator operation
- Any variable which is declared must be with the keywords var, let, and const.
- An equal sign represents that it has been assigned a value.
- Always use the precise keyword as it is defined already.
- We cannot define VAR or Const or LEt like this as it will throw an error and simply won't interpret it to its default keyword.
- As we said javascript is case sensitive which means you got to give the exact variable with the respective name without altering its keyword.
- Javascript follows the Unicode character set which sort of covers almost all the characters, punctuations, and symbols in the world.
- We cannot use hyphens in a javascript syntax as it is reserved for subtractions.
Javascript CamelCase:
- We have upper camel case or otherwise called pascal caseĀ
FirstName, LastName, MasterCard
- The lower camel case tends to start with a lowercase letter and the second word starts with uppercase.
firstName, lastName, masterCard
Literals:
- In javascript just like any other language, numbers are written with or without decimals.
20.66
2066
- Strings can be written within both double and single quotes.
"Rob"
'Rob'
Operators:
- Javascript uses arithmetic operator(+-/%^) to compute values and arithmetic operations.
(5/10)*50
- It uses an assignment operator(=) to assign values to the variable.