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Just do the following... myArray.findIndex(element => element.includes("substring")) findIndex () is an ES6 higher order method that iterates through the elements of an array and returns the index of the first element that matches some criteria (provided as a function).
7 kwi 2011 · Using underscore.js or lodash.js, you can do the following on an array of strings: var contacts = ['Billy Bob', 'John', 'Bill', 'Sarah']; var filters = ['Bill', 'Sarah']; contacts = _.filter(contacts, function(contact) { return _.every(filters, function(filter) { return (contact.indexOf(filter) === -1); }); }); // ['John']
12 lip 2024 · Checking if an array of strings contains a substring in JavaScript involves iterating through each string in the array and examining if the substring exists within any of them. This process ensures efficient detection of the substring’s presence within the array.
4 cze 2024 · The substring () method of String values returns the part of this string from the start index up to and excluding the end index, or to the end of the string if no end index is supplied.
28 cze 2022 · You can use the includes() method in JavaScript to check if an item exists in an array. You can also use it to check if a substring exists within a string. It returns true if the item is found in the array/string and false if the item doesn't exist.
9 sie 2023 · The includes() method of String values performs a case-sensitive search to determine whether a given string may be found within this string, returning true or false as appropriate. Try it Syntax
25 lip 2024 · Some of the most-used operations on strings are to check their length, to build and concatenate them using the + and += string operators, checking for the existence or location of substrings with the indexOf () method, or extracting substrings with the substring () method.
