So even when it comes to older browsers such as MSIE9, Array.indexOf works fine when dealing with an array of primitives. 1 - Basic examples of the lodash find Index, and other useful lodash methods
In this post then I will be going over a few quick examples of the lodash find index method, and then get into some additional examples that have to do with using native javaScript for getting one or more index values in an array that meet a given condition. So maybe I should not be to quick to judge a lodash method such as the lodash find index method, as many of these methods are not just referencing native methods, although some of them are. Yet again maybe not, it seems that the lodash alternatives often do have a little more going on with them, in addition there are additional helper methods that can be used with _.findIndex that come in handy. So that would make the lodash find index method yet another one of those lodash methods that you might only bother with for the sake of backward compatibility with older browsers, or just for the sake of consistency if you are using lodash in a project. In modern browsers there is now that works in very much the same manor as _.findIndex. But in case of – numbers1 there is no prime number in the array thus -1 is returned.The _.findIndex array method in lodash can be used to find the first index of an element in an Array that meets a specific condition. Here in case of – numbers = 17 is the prime number. Please click the buttonĪfter Click on the first “Let’s Check” Button.Īfter clicking on the second “Let’s Check” button. Let us find if any adult is there is queue or not.
Examples to Implement findIndex() in JavaScriptįollowing are the example are given below: Here 2 means numbers = 19 is an odd number. Let us find the first Odd element in the array Please click the buttonĭocument.getElementById("demo").innerHTML = numbers.findIndex(isOdd) Index and array argument is also being passed. Here every element is checked for idd condition, and the index of the first odd element is returned. Here our function is idOdd and the value being passed using ages.findIndex() command. Let’s say a function is isOdd – that checks if the given value is odd or not. thisArg: This denotes the value that needs to be specified in “this value”.Array: This is an optional argument that denotes the array whose values are being checked for the given condition.Index: This denotes the current index for which the function is called.currentValue: This denotes the value present at the current index in the array.
0 kommentar(er)
