get first x elements of array javascript code example
Example 1: get first 10 items of array javascript
const list = ['apple', 'banana', 'orange', 'strawberry']
const size = 3
const items = list.slice(0, size) // res: ['apple', 'banana', 'orange']
Example 2: javascript get first element of array
let array = [1,2,3] // makes your array
array[0] // returns first element of your array.
Example 3: first n elements of array js
const sliced_array = unsliced_array.slice(0, n);
Example 4: array index javascript show only first 2 elements
array.slice(0, n);
Example 5: Return the first element of the array javascript
var studentDetails=
[
{
"firstName":"John"
},
{
"firstName":"David"
},
{
"firstName":"Bob"
},
{
"firstName":"Mike"
},
{
"firstName":"Carol"
}
]
var firstObjectValue = "";
if(studentDetails.length > 1){
for(var index=0;index< studentDetails.length;index++){
firstObjectValue=studentDetails[index].firstName;
break;
}
} else {
firstObjectValue=undefined;
}
if(firstObjectValue!=undefined)
console.log(firstObjectValue);
else
console.log("There is no element in the array");
Example 6: javascript get first element of array
let mylist = ['one','two','three','last']
mylist[0],mylist[1],mylist[2],mylist[3]//this is called indexing and slicing in python
//in javascript it called getting elements in array