Home; javascript; Array.prototype.findIndex() Array.prototype.findIndex() The findIndex() method returns an index in the array, if an element in the array satisfies the provided testing function. Otherwise -1 is returned. See also the find() method, which returns the value of a found element in the array instead of its index.. Syntax arr.findIndex(callback[, thisArg])
2017-07-02
JS Array includes() method checks whether an array contains the item or specified an element or not. We can also determine if an array consists of an object in JavaScript. 2020-01-18 · JavaScript: Correct way to define global variables We know that what global variables or constants are, these are fields which are accessible application wide. In java, it is done usually done using defining “ public static ” fields. JavaScript Array Reference. This chapter contains a brief overview of the properties and method of the global array object.
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For example, You can easily make the array private to the game class; there are ways to make it available to other code which has business knowing the players via getXXX methods. You can even do it in such a way that the original array cannot be changed outside the game object. There are lots of ways to achieve what you want without global variables. JavaScript is more than just strings and numbers.
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