Variables and Data Types
- Undefined: Represents a variable that has been declared but has no assigned value;
- Null: Represents the intentional absence of any object value;
- Boolean: Represents either true or false;
- String: Represents a sequence of characters;
- Symbol: Represents a unique identifier that is not equal to any other value;
- Number: Represents numeric values;
- Object: Represents a collection of properties and methods.
- Arithmetic operators: Perform mathematical calculations (+, -, *, /, %);
- Assignment operators: Assign values to variables (=, +=, -=, *=, /=);
- Comparison operators: Compare values and return a boolean result (==, ===, !=, !==, >, <, >=, <=);
- Logical operators: Combine multiple conditions and return a boolean result (&&, ||, !);
- Bitwise operators: Manipulate values at the bit level (&, |, ^, ~, <<, >>, >>>).
- if statement: Executes a block of code if a specified condition is true;
- else statement: Executes a block of code if the condition in the if statement is false;
- switch statement: Evaluates an expression and executes a block of code based on different cases;
- for loop: Repeats a block of code a specific number of times;
- while loop: Repeats a block of code as long as a specified condition is true;
- do-while loop: Repeats a block of code at least once, and then continues to repeat as long as a specified condition is true.
- Function declaration: Defining a function using the function keyword;
- Parameters: Variables that receive values when the function is called;
- Return statement: Specifies the value that the function should return;
- Function invocation: Calling a function to execute its code.
By learning how functions work, you can split down large programs into more manageable chunks.
Objects and Arrays
- Objects: Objects are collections of key-value pairs, where each value can be of any data type. They are used to represent complex entities and their properties and behaviors;
- Arrays: Arrays are ordered collections of values. They allow storing multiple values in a single variable and provide various methods for manipulating and accessing these values.
- Using console.log() to log values and debug output;
- Utilizing breakpoints in the browser’s developer tools;
- Stepping through code to identify the source of errors;
- Using error messages and stack traces to pinpoint issues.
Influential Factors in Learning Speed
|Quality of Learning Resources||The rate of learning can be affected by the availability and quality of learning resources including books, online courses, coding bootcamps, and self-study guides.|
|Practical Application||Learning is facilitated and progress is accelerated when students put their theoretical knowledge into practice through coding exercises and real-world projects.|
Crafting a Learning Plan
Developing a plan for your education will greatly reduce wasted time and effort. The following study schedule is suggested for the next four weeks:
- Week 1: Basics: Learn the basics first, such as the difference between variables, data types, and operators. Put aside some time to do some coding drills;
- Week 2: Control Structures and Functions: Learn how to use if, else, switch, for, and while statements this week as part of a larger control framework. Get started learning about functions and why they matter;
- Week 3: Objects, Arrays, and Event Handling: Learn more about objects and arrays and other advanced data structures. Get familiar with event handling to make your web pages more interactive;