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25 maj 2016 · You can use some () function: to check if a string contains any element of an array. e.g. var fruitsArr = ['banana', 'monkey banana', 'apple', 'kiwi', 'orange']; var myString = "I have an apple and a watermelon."; var stringIncludesFruit = fruitsArr.some (fruit => myString.includes (fruit));
String match() and String search() The match() method returns an array of matches. The search() method returns the position of the first match.
if you want the exact index you can use indexOf (which is also js built-in function), which will return the exact index if the value is found else it will return -1. You can switch .includes with the .some method which returns a boolean.
25 lip 2024 · The match() method of String values retrieves the result of matching this string against a regular expression. Try it. Syntax. js. match(regexp) Parameters. regexp. A regular expression object, or any object that has a Symbol.match method.
2 lut 2023 · JavaScript Strings have a match () method that returns an array if the string matches a given regular expression, or null otherwise. 'abc'.match (/a/); // [ 'a', index: 0, input: 'abc', groups: undefined ]'abc'.match (/z/); // null// Use `match ()` to check if a string matches a regexpif (str.match (regexp) != null) { // matches!
7 sty 2020 · String.prototype.match() (aka: the match method on strings) can allow you to switch out strings or set conditions if a string or any data is matched. It then stores that data in a new array. First the syntax and then the explanation: let newArray = string.match(condition);
25 lip 2024 · The exec() method of RegExp instances executes a search with this regular expression for a match in a specified string and returns a result array, or null. Try it. Syntax. js. exec(str) Parameters. str. The string against which to match the regular expression.
