27 Javascript Search In String
17/6/2017 · I'm trying to make a function that finds the string that contains all words from an array. I have tried this: function multiSearchOr(text, searchWords){ var searchExp = new RegExp(searchWords.join("|"),"gi"); return (searchExp.test(text))?"Found!":"Not found!"; } alert(multiSearchOr("Hello my name sam", ["Hello", "is"])) It's as simple as iterating the array and looking for the regexp. function searchStringInArray (str, strArray) { for (var j=0; j<strArray.length; j++) { if (strArray[j].match(str)) return j; } return -1;} Edit- make stras an argument to function. Share.
Javascript String Match
The search() method searches a string for a specified value, and returns the position of the match. The search value can be string or a regular expression. The search() method returns -1 if no match is found.
Javascript search in string. This method executes the search for a match between a regular expression and this String object. Syntax. Its syntax is as follows −. string.search(regexp); Argument Details. regexp − A regular expression object. If a non-RegExp object obj is passed, it is implicitly converted to a RegExp by using new RegExp(obj). Return Value 14/4/2020 · We want to search our String to see if 'London' exists in it, and perhaps do something with it if there’s a match. For this, we can use indexOf (which exists on String.prototype ): const index = location.indexOf('London'); // 15 console.log(index); Here we’ve used indexOf ('London') to search our String for a match! 1/1/2014 · With ES6 JavaScript added the includes method natively to both the Array and String natives. The method returns true or false to indicate if the sub-string or element exists. While true or false may provide the answer you need, regular expressions can check if a sub-string exists with a …
15/7/2020 · Following is the code for searching a string in JavaScript −Example Live Demo<!DOCTYPE html> 13/11/2020 · 'a nice string'. indexOf ('a') //0 'a nice string'. indexOf ('c') //4 If there are more than one occurrence, this method returns the position of the first one it finds, starting from the left. Download my free JavaScript Beginner's Handbook and check out my JavaScript Masterclass ! 7/7/2020 · Javascript string prototype contains search method which accepts regular expression as parameter. We can use search method to check if a string contains a substring or not as shown below. var actualstring = "Javascript search method", var substringToCheck = "search"; var isContains=actualstring.search("search") !== -1; //isContains true
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