Index

Beginner

• let vs var vs const
• Difference between function declaration & function expression
• Primitive data type
• Coercion
• Passing by Value vs. Reference
• Timer function
• Truthy and Falsy values

Advanced

• Spread operator
• Rest syntax
• Destructuring
• Higher-Order function
• Closures
• call() , apply() and bind()
• hoisting : hoist a flash ie move it to the top
• Currying function
• Event Bubbling and Capturing
• Debugging
• Generator Function

• Asynchronous js
• JavaScript Design Patterns
• Iterators and generators
• throttle vs debounce
• object creation patterns tutorial - factory , constructor pattern, prototype pattern
• JavaScript ES2020
• Tricky JavaScript interview questions and answers

Infinities

• Positive INFINITY

  POSITIVE_INFINITY is displayed when a number exceeds the upper limit of the floating point numbers, which is "1.797693134862315E+308"

     alert(Math.pow(10, 1000)); /* Infinity */  
  

• Negative INFINITY

  NEGATIVE_INFINITY is displayed when a number exceeds the lower limit of the floating point numbers, which is "-1.797693134862316E+308".

POSITIVE_INFINITY vs. MAX_VALUE (or NEGATIVE_INFINITY vs. MIN_VALUE )

1. The value of the MAX_VALUE property is the largest number your JavaScript interpreter can handle. Larger value will be viewed as POSITIVE_INFINITY.

2. The value of NEGATIVE_INFINITY and POSITIVE_INFINITY are read-only they cannot be changed by your scripts; they are returned by JavaScript whenever a function or operation returns a number larger than the MAX_VALUE the JavaScript interpreter can handle See the code snippet

   

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The script below illustrate how the JavaScript interpreter understands the concept of infinity (anything out of bound is infinite).

** alert( Number.NEGATIVE_INFINITY === -2 * Number.MAX_VALUE ); //true**

The above script return "true" because JavaScript interpreter understands the concept, the negative infinity identical to the negative double of the finite MAX_VALUE property.

CSS Notes

https://github.com/ResourceAggregator/Frontend-stuff/blob/master/css/css.md