Category: Uncategorized

maps bhi iterable hai isme hum data key vlue pairs me add karte hain – [‘key’,’value’] object me sirf string,symbol type key hoti hai isme hum key ka koi bhi type le sakte hai – array,number,string etc. Syntax – new Map() set data – set(‘key’,’value’) get data – get(‘key’) get keys – keys() Maps ka…

Sets bhi array ki tarah kaam karta hai or ye bhi iterable hota hai. Array me duplicate value le sakte hain but set duplicate value ko ignore karta hai sets ka apna method hota hai new Sets() no index base access order is not guaranteed const numbers = new Sets([1,2,3,4]); agar hume kuck isme add…

jispe hum for of loop laga sakein string , array are iterable

agar array ke beech me se kuch delete karna hai ya add karna hai to splice ka use karte hain isme start,delete,insert hota hai.

agar humne kisi array ke element ko chnage karna hai to hum fill ka use karte hain. or isme value,start,end argumnet dete hain

input callback function and return true or false or isme ek bhi number match karega to ture dega ya false de dega.

input type callback function and retrun true / false check if every value are matched than return true otherwise false. return only true or false. isme har ko check karega agra saare match krenge to true dega nahin match kare to false dega.

as a input callback function and return true / false and print appropriate value. Find method check one by one value of array and if find get true than stop finding and print value. Ye array me se ek element ki value ko find karega or usko print kar dega. or new array dega

Imput callback function sort array value ascending, descending and chnage position value of array return new array and have two argument (a,b)

input callback function and return sum of array value and set also initial value in callback function. ye humare arraye ke element ko sum karega.