findindex is not a function

I have used this code before (about 6 months ago) and it worked then. What is the most efficient way to deep clone an object in JavaScript? First of all, I know this question has been asked multiple times before, but there's not any solution to my answer. Because there is no function and condition in arry.findIndex (). let x = document. Thanks for the help, however, I have already read through the docs and using some still returns the same error as findIndex. Check the type of state.events before trying to use it. Findindex undefined is not a function. To use array methods such as splice or findIndex you have to convert it to an array first using the Object.values() function: state.results.caseLocations = Object.values(state.results.caseLocations); state.results.caseLocations.splice( state.results.caseLocations.findIndex((i) => i.objectid === action.objectId), 1 ); As @Teemu said, the state changes to an object somewhere before. caseLocations is an object, not an array. Once the findIndex() method encounters an element that satisfies the criteria, it immediately returns the index of that element and does not process the rest of the elements in the array (preventing the findIndex() method from processing the elements "the" and "net" in the array). You can use Polyfill as IE do not support Array.prototype.findIndex(). How can I use Mathematica to solve a complex truth-teller/liar logic problem? There is no enough information. So if you want to access any jQuery methods on the element then you need to get the elements jQuery wrapper object. your coworkers to find and share information. Making statements based on opinion; back them up with references or personal experience. Join Stack Overflow to learn, share knowledge, and build your career. What has Mordenkainen done to maintain the balance? findIndex is not a prototype method of Array in Cannot read property 'findIndex' of undefined at MatAutocomplete.displayFn [as function to remove a item from json array. The MATCH function searches for a specified item in a range of cells and then returns the relative position of the item in the range. e.data.toString().indexOf('') By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Start index is optional with 0 as default. index: This parameter specifies the array index of the current element. INDEX and MATCH Syntax & Arguments . Maybe it's Can ISPs selectively block a page URL on a HTTPS website leaving its other page URLs alone? First of all, I know this question has been asked multiple times before, but there's not any solution to my answer. Which is warmer for slipper socks—wool or acrylic? var eachProductContent = $(element).find(".product-meta").clone(); Inside the each() handler you will get the dom element reference as the second parameter, not a jQuery object reference. The findIndex() method executes the function once for each element present in the array: If it finds an array element where the function returns a true value, findIndex() returns the index of that array element (and does not check the remaining values) … Depending on the formula, the return value of INDEX may be used as a reference or as a value. Joachim Pileborg, thnx for title :). How were four wires replaced with two wires in early telephone? Does fire shield damage trigger if cloud rune is used. Milestone leveling for a party of players who drop in and out? callback will not process the elements appended to the array after the call to findIndex() begins. You can use isArray to find out if the state is object or array. overridden somewhere. Thanks for contributing an answer to Stack Overflow! "The INDEX function searches source, from left to right, for the first occurrence of the string specified in excerpt, and returns the position in source of the string's first character. How do I include a JavaScript file in another JavaScript file? Smallest known counterexamples to Hedetniemi’s conjecture, 9 year old is breaking the rules, and not understanding consequences. Which equals operator (== vs ===) should be used in JavaScript comparisons? state: { carts: [], }, Vue Inspect Carts getElementByID ('foo'); // TypeError: document.getElementByID is not a function. How to check whether a string contains a substring in JavaScript? And no i dinn`t console.log(data). Efficient way to JMP or JSR to an address stored somewhere else? match Predicate The Predicate delegate that defines the conditions of the element to search for. I have also tried to create a function out of this and tried to use Object.Assign. How to validate an email address in JavaScript. your coworkers to find and share information. rev 2021.1.18.38333, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide. To add shorthands:true in lodash-webpack-plugin options will work!otherwise ,do not use this function. To learn more, see our tips on writing great answers. Syntax: array.findIndex(fun(curValue, index, arr), thisValue) Arguments: fun: This parameter specifies a function to be run for every element of the array. "There is a suggested polyfill att the MDN page that you can use if you want to use findIndex today." curValue: This parameter specifies the value of the current element. How many dimensions does a neural network have? https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/some. findIndex method is a built-in method of arrays library in javascript which is used to find the index of an element in the array which returns true for an operation specified.

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