Зміст курсу
Introduction to TypeScript
Introduction to TypeScript
Comparison Operators
Let's start with what comparison operators are in the first place. So...
true or false) depending on whether the comparison condition is met.Here are the main comparison operators in TypeScript:
==(equal): Compares two values for equality, converting them to a common type if necessary. For example:
===(strict equal): Compares two values for equality without type conversion. This operator considers both type and value. For example:
!=(not equal): Compares two values for inequality, converting them to a common type if necessary;!==(strict not equal): Compares two values for inequality without type conversion.
>(greater than): Checks if the left value is greater than the right value. For example:
<(less than): Checks if the left value is less than the right value. For example:
>=(greater than or equal to): Checks if the left value is greater than or equal to the right value.<=(less than or equal to): Checks if the left value is less than or equal to the right value.
Advanced
Type Casting Explanation:
Type casting, also known as type conversion, is the process of changing the data type of a value from one type to another. In TypeScript, this can be done explicitly using type assertions or conversion functions. For example, converting a number to a string:
Type casting is necessary when you want to ensure that a value is treated as a specific type in a particular context, especially when TypeScript's type inference is not sufficient. It helps you control the types of variables and avoid type-related errors in your code.
Note
We'll talk about what
functionsare and how to create and use them later in this course. It's an important topic, but for now, it's too early.
Все було зрозуміло?
Зміст курсу
Introduction to TypeScript
Introduction to TypeScript
Comparison Operators
Let's start with what comparison operators are in the first place. So...
true or false) depending on whether the comparison condition is met.Here are the main comparison operators in TypeScript:
==(equal): Compares two values for equality, converting them to a common type if necessary. For example:
===(strict equal): Compares two values for equality without type conversion. This operator considers both type and value. For example:
!=(not equal): Compares two values for inequality, converting them to a common type if necessary;!==(strict not equal): Compares two values for inequality without type conversion.
>(greater than): Checks if the left value is greater than the right value. For example:
<(less than): Checks if the left value is less than the right value. For example:
>=(greater than or equal to): Checks if the left value is greater than or equal to the right value.<=(less than or equal to): Checks if the left value is less than or equal to the right value.
Advanced
Type Casting Explanation:
Type casting, also known as type conversion, is the process of changing the data type of a value from one type to another. In TypeScript, this can be done explicitly using type assertions or conversion functions. For example, converting a number to a string:
Type casting is necessary when you want to ensure that a value is treated as a specific type in a particular context, especially when TypeScript's type inference is not sufficient. It helps you control the types of variables and avoid type-related errors in your code.
Note
We'll talk about what
functionsare and how to create and use them later in this course. It's an important topic, but for now, it's too early.
Все було зрозуміло?
