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pokorson/shallow.js

Created October 5, 2018 11:08
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Javascript shallow copying example
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shallow.js
// Example of updating record on shallow copied array in Javascript
const arr1 = [{a: 10, b: 15}];
console.log("arr1 before update = ", arr1);
const arr2 = arr1.slice();
console.log("arr2 before update = ", arr2);
arr2[0].b = 15;
console.log("arr2 after update = ", arr2);
console.log("arr1 after update = ", arr1);
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