The deep-clone module provides a function that can be used to clone both json objects and json arrays.
Rather that a single parameter, the function takes two parameters: the object to clone and an optional function that will be called in case a function or a non-native object is found in the object to clone.
In this way, the developer can decide what to do with the function or the non-native object.
In case this function is not provided and a function or a non-native object is found, the function will throw an error.
const {deepClone} = require('deep-clone');
const obj = {
a: 1,
b: {
c: undefined,
d: {
e: null,
f: [1, 2, 3, 4, 5, 6, 7, 8, 9, {g: 10}]
}
}
};
const clonedObj = deepClone(obj);
console.log(clonedObj);
// {
// a: 1,
// b: {
// c: undefined,
// d: {
// e: null,
// f: [1, 2, 3, 4, 5, 6, 7, 8, 9, { g: 10 }]
// }
// }
// }As said before, the function takes two parameters: the object to clone and an optional function that will be called in case a function or a non-native object is found in the object to clone.
In this way, the developer can decide what to do with the function or the *non-native object.
const {deepClone} = require('deep-clone');
const obj = {
a: 1,
b: {
c: new Date("2023-03-25T21:27:20.469Z")
d: [1, 2, 3, 4, 5, 6, 7, 8, 9, {g: 10}]
},
c: function () {
console.log('Hello world!');
},
d: new Map([
[1, 'one'],
[2, 'two'],
[3, 'three'],
])
};
const clonedObj = deepClone(obj, (value) => {
if (value instanceof Date) {
return new Date(value);
}
if (value instanceof Map) {
return new Map(value);
}
return value;
});The function will throw an error if a function or a non-native object is found in the object to clone and no custom function is provided, like in the following example:
const {deepClone} = require('deep-clone');
const obj = {
a: 1,
b: {
c: new Date("2023-03-25T21:27:20.469Z")
d: [1, 2, 3, 4, 5, 6, 7, 8, 9, {g: 10}]
},
c: new Map([
[1, 'one'],
[2, 'two'],
[3, 'three'],
])
};
const clonedObj = deepClone(obj);
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