#18: Master TypeScript Unions and Intersections - Real-Life Examples & Practical Tips 🚀

[@ThapaTechnical]

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[@omrout3957]

Sir I pay for source code ₹50 rs but I didn't get source code

[@subhomoypal7982]

Your auto prefix typescript plugin create a confusion for us.

[@alpha7s708]

Exactly

[@Radhe_radhe2929]

Ekdum khatarnak samjh aagya😊😊❤🎉

[@adithyang6672]

Bhai app legend hoo kya padhatee hoo, matlab samaj mei bhi aajata haii bore bhi nhi hotaa,,, ekdum unique u are the best youtuber......conecpts sikhte bhi hoo aur entertainment bhi karte hoo please keep making such awesome videos

[@yash-eb9zu]

Bhaiya mern stack application azure par kaise deploy karna uspar video please

[@rishiraj2548]

Thanks a lot

[@ashishkumar-jo7cj]

Mereko lgta h union or Intersection me thoda bahut gadbad h union kehta h ki tum multi types me se kisi ek hi type ko use kr sakte ho jabki intersection me aap dono types ko include kr sakte ho
For example
type Cat = {
meow: () => void
}
type Dog = {
bark: () => void;
}
// For union
type Pet = Dog | Cat;
// For Intersection
type Pet1 = Dog & Cat;
Ab Union me hum ya to Cat type ko use kr sakte h ya fhir Dog ko
Agae Catcor Dog dono ki properties ko use krna h to hume Intersection ko select krna pdega

[@techsavy5669]

return (type of value === "number") ? ('$' + value. to Fixed(2)) : (type of value === "string") ? (value[0].to Upper Case() + value. slice(1)): (value === true ? "Yes" : "No");

[@nontechbg]

Good 👍

[@ashishkumar-jo7cj]

Ye intersection kam or AND or OR Logical Operation jyada lg rhe hai jahaan Union ka kaam OR Logical Operator kr rha h or Intersection ka kaam AND Logical Operator kr rha h or dono ke symbols bhi same h bas yahaan single | or & use ho rhe h

[@shubhamsharma-wo8fz]

ye arrow function k time 2 times Q ata voide , userInput : () => voide = () : voide => {} ? ye structor samaz nai aya

[@itspiyush_23]

Extension Name?

[@runtimeerror7773]

Devknus for reactjs

[@ballagtech7430]

assignment wale pdf se kuchh copy nhi ho raha hai

[@khyzersaleem]

extension?

[@PradeepSingh-d6x]

Dekh raha hai ha vinod 😁😁😁😁

[@satyam_code]

💙💜

[@rishabhmalewar]

const inputValue = (value: string | boolean | number) => {
if (typeof value === 'number') {
return "$" + value.toFixed(2)
} else if (typeof value === 'boolean') {
if (value === true) {
return "Yes"
} else {
return "No"
}
} else if (typeof value === 'string') {
return `${value.charAt(0).toUpperCase()}${value.substring(1)}`
} else {
throw new Error("Invalid input data");
}
}
console.log(inputValue(3.143527))
console.log(inputValue("typescript"))
console.log(inputValue(false))

[@CosMIcAkaSh1111]

union task:
const formatUserInput = (input: string | number | boolean): string | number | boolean => {
if(typeof input == "string"){
return input.charAt(0).toUpperCase() + input.slice(1).toLowerCase()
}else if(typeof input == "boolean"){
return input ? "yes" : "no"
}else if(typeof input == "number"){
return `$${input.toFixed(2)}`
}else{
throw new Error("Invalid input")
}
}
console.log(formatUserInput("hello world"))
console.log(formatUserInput(true))
console.log(formatUserInput(100))

[@jagdishjena9058]

🆃🅷🅰🅽🅺 🆈🅾🆄 🆂🅾 🅼🆄🅲🅷 🆂🅸🆁.👑👑👑👑👑👑

[@RajneeshYashkirti2025]

🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉

[@shahhussain7192]

let userInput = (value: number | string | boolean): number | string => {
if(typeof value === "number") {
return '$' + value + '.00';
}
else if (typeof value === 'string') {

return value.charAt(0).toUpperCase() + value.slice(1);
}
else {
return value=== true ? "Yes" : "No"

}
}

console.log(userInput(20));
console.log(userInput('gufran'));
console.log(userInput(true));

[@RalKrish]

const booleanFn_1 = (value: string | boolean | number): void => {
switch (typeof value) {
case 'string':
value = value.charAt(0).toUpperCase() + value.slice(1)
console.log(value);
break;
case 'number':
value = `$${value.toFixed(2)}`
console.log( value);
break;
case 'boolean':
value === true ? console.log('Yes') : console.log('No')
break
default:
console.log( value, 'No worries');
}
}
booleanFn_1(15);
booleanFn_1(true);
booleanFn_1(false);
booleanFn_1('venom');

[@DEEPANSHU_NAG]

const formatFunction = (value:number|boolean|string):string =>{
if(typeof value==="number")
{
return `$ ${value/100}`;
}
return (typeof value==="boolean" && value==true) ? "Yes" : "No";
/*if(typeof value==="string")
{
return value.charAt(0).toUppercase() + value.slice(1);
}*/
}
console.log(formatFunction(856));
console.log(formatFunction(true));
//console.log(formatFunction("manjeet"));
Isme commented part me error h plz fix..

[@subhomoypal7982]

.toUppercase() asa nahi ha, asa hoga .toUpperCase()

[@DEEPANSHU_NAG]

@@subhomoypal7982 abhi v error h uppercase wale line me
main.ts(9,22): error TS2339: Property 'charAt' does not exist on type 'string | number | boolean'.
Property 'charAt' does not exist on type 'number'.
main.ts(9,54): error TS2339: Property 'slice' does not exist on type 'string | number | boolean'.
Property 'slice' does not exist on type 'number'.

[@DEEPANSHU_NAG]

@@subhomoypal7982 uppercase correct krne k baad v error h

[@adithyang6672]

its toUpperCase() camel case hai naa

[@DEEPANSHU_NAG]

@@adithyang6672 ha usme v error aa rha h