6/12/2023 0 Comments String includes javascriptIn this example, the includes() method returned true because the substring 'The' is found in the string 'TechOnTheNet'. Specifying Multiple Characters as the Substringįinally, the includes() method can search for multiple characters in a string.Ĭonsole.log(totn_string.includes('The')) So in this case, the includes() method returned false because the substring 'e' is not found. This means that the search will begin looking for the value 'e' starting at position 11 in the string 'TechOnTheNet'. In this example, we have set the start_position parameter to a value of 11. The following will be output to the web browser console log: false There are a couple of differences between the String.substring() and the String. You can change the position where the search will start in the string by providing a start_position parameter to the includes() method.Ĭonsole.log(totn_string.includes('e',11)) However, notice that we didnt use a negative end index in the call to String.substring(). What is a reasonable way to check for this javascript string substring. In this example, the includes() method returned true because the substring 'e' is found within 'TechOnTheNet' when performing a case-sensitive search. Usually I would expect a ntains() method, but there doesnt seem to be one. The following will be output to the web browser console log: true We have written the output of the includes() method to the web browser console log, for demonstration purposes, to show what the includes() method returns. This method returns true if the string contains the characters. We have then invoked the includes() method of the totn_string variable to determine if a substring is found within totn_string. The includes() method determines whether a string contains the characters of a specified string. In this example, we have declared a variable called totn_string that is assigned the string value of 'TechOnTheNet'. Let's take a look at an example of how to use the includes() method in JavaScript.įor example: var totn_string = 'TechOnTheNet' 8 Answers Sorted by: 17 You first need to convert it into array using split () and then use includes () string.split (' ').includes ('on') Just need to pass whitespace ' ' to split () to get all words Share Improve this answer edited at 13:21 answered at 13:11 Maheer Ali 35.
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