java copy array
int[] a = {1,2,3,4,5};
int[] b = Arrays.copyOf(a, a.length);java copy array
int[] a = {1,2,3,4,5};
int[] b = Arrays.copyOf(a, a.length);javascript copy array
/* Copying arrays or parts of arrays in JavaScript */
var fruit = ["apple", "banana", "fig"]; // Define initial array.
console.log(fruit); // ["apple", "banana", "fig"]
// Copy an entire array using .slice()
var fruit2 = fruit.slice();
console.log(fruit2); // ["apple", "banana", "fig"]
// Copy only two array indicies rather than all three
// From index 0 (inclusive) to index 2 (noninclusive)
var fruit3 = fruit.slice(0,2);
console.log(fruit3); // ["apple", "banana"]javascript copy array
// this is for array with complex object
var countries = [
{name: 'USA', population: '300M'},
{name: 'China', population: '1.6B'}
];
var newCountries = JSON.parse(JSON.stringify(countries));how to copy array in java
// method
public static int [] copyArray(int [] arr){
int [] copyArr = new int[arr.length];
for (int i = 0; i < copyArr.length; i++){
copyArr[i] = arr[i];
}
return copyArr;
}
// Arrays. method
int[] copyCat = Arrays.copyOf(arr, arr.length);
// System
System.arraycopy(x,0,y,0,5); // 5 is array's length
// clone
y = x.clone();copy an array
// Copy an array
fn main() {
let arr = ["a","b","c"];
let mut another = arr.clone(); // make a copy
println!("copy of arr = {:?} ", another);
another[1] = "d"; // make a change
assert_eq!(arr, another); // panic, no longer equal
}Copy an Array
let shallowCopy = fruits.slice() // this is how to make a copy
// ["Strawberry", "Mango"]Copyright © 2021 Codeinu
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