TypeScript

Here are the five ways to convert a string to a boolean in TypeScript: Using ternary operator Using a boolean map Using JSON.parse() function Using direct comparison with Strict Equality Using the boolean object Using Double Negation Method 1: Using the ternary operator You can use the “ternary operator” to check if the string value is … Read more

To convert a boolean to a string in TypeScript, you can use the “String constructor”, “toString()”, “template literals”, or “ternary operator”. Method 1: Using a String constructor The String() constructor converts a given argument to a primitive string value. Example let boolValue: boolean = true; let strValue: string = String(boolValue); console.log(boolValue) console.log(typeof boolValue) console.log(strValue) console.log(typeof … Read more

Here are two main ways to convert an Enum to an Array in TypeScript. Using the Object.keys() method Using the Object.values() method Enums in TypeScript, unlike interfaces, exist at runtime. They are converted into real objects by the TypeScript compiler. Converting a Numeric Enum into an Array To convert a numeric enum into an array, … Read more

To convert Enum to String in TypeScript, you can use the “bracket notation ([ ])” to access a specific value on the enum to get its name. In TypeScript, an enum is a type used to define a set of named constants. By default, the numeric values of the enum members start from 0 and … Read more

TypeScript enums are real objects that exist at runtime. You can use the “Object.keys()” or “Object.values()” methods to access the keys or values. How to Access All the Keys of a String Enum To access all the enum keys in TypeScript, you can use the “Object.keys()” method. enum Cars { BMW = “B”, Cadillac = “C”, … Read more

The exclamation mark(!) is a “non-null assertion operator” that is used to “remove null and undefined values in TypeScript”. By using the “! operator”, you’re telling TypeScript to trust that the value is present, and it should not raise a type error. It’s a way of overriding TypeScript’s strict null checks. However, using the non-null … Read more

The error “cannot find module CSS/SCSS” occurs when TypeScript is “having trouble understanding how to handle CSS or SCSS files in your project.” This can happen because TypeScript, by default, understands only JavaScript and TypeScript files and doesn’t know how to handle other file types like CSS or SCSS. Here’s a step-by-step guide to fix … Read more

To merge objects in TypeScript, you can use the “spread syntax” or “Object.assign()” method. Method 1: Merging Objects in TypeScript with Spread syntax(…) The spread syntax(…) in Typescript can be “used to merge the elements of one or more objects into a new object”. The spread operator’s main objective is to spread an object’s elements. Syntax … Read more

To convert a string to an enum in TypeScript, you can use the “enum’s string values”. Here’s a step-by-step guide to help you achieve this. Step 1: Define the Enum enum MyEnum { ValueA = “VALUE_A”, ValueB = “VALUE_B”, ValueC = “VALUE_C”, } Step 2: Create a function to convert the string to the Enum … Read more