#5 - Array & 10 Most Important Arrays Functions in JavaScript

In this video, I have explained: Array & 10 Important Arrays Functions in JavaScript
1. push
2. pop
3. shift
4. unshift
5. splice
6. slice
7. concat
8. indexOf
9. includes
10. forEach

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[abhilashadeshpande]

How beautifully you explained...Really loved your way.. thanks a ton..

[peacelilly]

Hi Naveen, please correct me if my understanding is not correct.
I think it looks only for the first value in includes(). If it is found then true, else false. It doesn't look for the second value in the includes().
Below is the example I tried :-
let person =["customer", "seller", "admin", "vendor"];
console.log(person.includes("consumer", "admin")); //false
console.log(person.includes("admin", "consumer")) // true.

[sumitgoyal]

Hi naveen Just a query how you are getting that line at 5:54 pause video, at 22nd line, Iam not getting it ? pls help

[abdulRahman-idru]

Just Adding one more scenario : Finding the indexOf nth occurrence of an element in an array. Might be helpfull for interview perspective and this code can be optimized
//Function to find to find the n-th index of an element in an array
let bigArray = ["Abdul", "Abdul", "Abdul", "Abdul", "Abdul", "test", "test", "Abdul"];
let nthIndex = findNthIndex(bigArray, "John", 6);
console.log(nthIndex);
function findNthIndex(arr, value, nthOccurance) {
let nthIndex = 0;
if (arr.length < nthOccurance) {
return -1;
}
if (nthOccurance <= 1) {
console.log("nthOccurance value should not be lesser than 1");
} else {
for (let i = 1; i < nthOccurance; i++) {
nthIndex = arr.indexOf(value, nthIndex + 1);
}
return nthIndex;
}

[naveenautomationlabs]

In this video, I have explained: Array & 10 Important Arrays Functions in JavaScript
1. push
2. pop
3. shift
4. unshift
5. splice
6. slice
7. concat
8. indexOf
9. includes
10. forEach

[ganapatihiregange]

waiting for good explaination regarding forEach loop from your series

[chinmaay]

Hello Navin, what is the total number of videos will be coming for this series to end? currently we are at 16.

[dangetiharibabu]

Sir you missed map, filter, reduce method make a video on this topics