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What is the most efficient way to create an arbitrary length zero filled array in JavaScript?
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In JavaScript, you can use the Array. fill() method to populate an array with a zero or any other value like an object or a string. This method replaces all elements in an array with the value you want to populate the array with and returns the modified array.
The correct way to write a JavaScript array var txt = new Array("arr ","kim","jim"). JavaScript arrays are used to store multiple values in a single variable. Using an array literal is the easiest way to create a JavaScript Array.
Creating an ArrayUsing an array literal is the easiest way to create a JavaScript Array. Syntax: const array_name = [item1, item2, ...]; It is a common practice to declare arrays with the const keyword.
ES6 introduces Array.prototype.fill. It can be used like this:
new Array(len).fill(0); Not sure if it's fast, but I like it because it's short and self-describing.
It's still not in IE (check compatibility), but there's a polyfill available.
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