String

Solution To check if a string contains a substring in react js, use the includes() method it will return true if substring got in string. Snippet In this snippet section, we will see an example of checking string contain a substring in react. const str = "ReactJsSnippet"; console.log(str.includes('Snippet')) // true Example In this example, we will check string contain substring or not and print in console and page. Let’s start coding…...

Solution To check string contains special characters in react js, use the this regex /[`!@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?~]/ with test() method it will return true if string got in special char. Snippet In this snippet section, we will see an example of checking string contains special characters or not in react. const specialChars = /[`!@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?~]/; const str = "ReactJs@Snippet"; console.log(specialChars.test(str)) // true Example In this example, we will check string contain special characters or not and print in console and page....

Solution To get the last letter of a string in react js, use the string index method it means when you use string[string.length - 1] it will return the last letter of the string. Snippet In this snippet section, we will see an example of getting the last letter of a string program sample. const str = "ReactJsSnippet"; console.log(str[str.length - 1]) // t Example In this example, we will get and show the last letter of the string in the console and page....

Solution To get length of string in react js, use string.length property it will count and return number of char of string. string.length The length property of an String object represents the number of letter in that string. The value of the length property is a non-negative integer with a value less than 232. Snippet In this snippet, we will create an string and use the string.length property to show the length of string....

Solution To get the first letter of a string in react js, use the string index method it means when you use string[0] it will return the first letter of the string. Snippet In this snippet section, we will see an example of getting the first letter of a string program sample. const str = "ReactJsSnippet"; console.log(str[0]) // R Example In this example, we will get and show the first letter of the string in the console and page....