Split the string in JavaScript and then count the characters to decrypt

Question

Split the string in JavaScript and then count the characters to decrypt

I am currently working on a task that involves splitting a string at every space. I have successfully achieved this using .split(" "), but now I need to determine the length of each individual string. My goal is to check if a given string includes a middle initial or not. For example, when the name "John M Smith" is entered, I can identify the separate words. However, in cases where a middle initial is not provided, the last name will be mistakenly categorized as the middle initial. How should I approach solving this issue? Any advice would be greatly appreciated.

javascript string

Answer 1

Answer №1

To determine the number of names in a string, use the length property of the array storing the separated strings:

var separateStrings = stringVar.split(' ');
var numOfNames = separateStrings.length;

For instance, consider the following example code snippet:

var i = document.getElementById('names'); // assuming an input element with id="names"

i.onkeydown = function(e){
    if (e.keyCode == 13){
        var stringVar = this.value,
            separatedNames = stringVar.split(' '),
            numOfNames = separatedNames.length;

        alert(numOfNames);
    }

};

Check out the live demo on JS Fiddle here.

Answer 2

To determine the number of names in a string, use the length property of the array storing the separated strings:

var separateStrings = stringVar.split(' ');
var numOfNames = separateStrings.length;

For instance, consider the following example code snippet:

var i = document.getElementById('names'); // assuming an input element with id="names"

i.onkeydown = function(e){
    if (e.keyCode == 13){
        var stringVar = this.value,
            separatedNames = stringVar.split(' '),
            numOfNames = separatedNames.length;

        alert(numOfNames);
    }

};

Check out the live demo on JS Fiddle here.

Answer 3

Answer №2

To determine if a middle name exists, you can check the length of the result array:

var fullName = "John Smith".split(" ");
if(fullName.length == 2) {
  //There is no middle name
  //fullName[0] is "John"
  //fullName[1] is "Smith"
}
else if(fullName.length == 3) {
  //Middle name is present
}

Answer 4

To determine if a middle name exists, you can check the length of the result array:

var fullName = "John Smith".split(" ");
if(fullName.length == 2) {
  //There is no middle name
  //fullName[0] is "John"
  //fullName[1] is "Smith"
}
else if(fullName.length == 3) {
  //Middle name is present
}

Answer 5

Answer №3

Here is a useful code snippet:

let name = "Jane A Doe".split(" ");
let first = name[0],
    middle = (name[2] && name[1]) || "",
    last = name[2] || name[1];

This piece of code will accurately assign values to each variable, accounting for cases where there is a middle initial and where there isn't. Keep in mind that this assumes there will always be a first and last name, with the middle initial being optional.

Answer 6

Here is a useful code snippet:

let name = "Jane A Doe".split(" ");
let first = name[0],
    middle = (name[2] && name[1]) || "",
    last = name[2] || name[1];

This piece of code will accurately assign values to each variable, accounting for cases where there is a middle initial and where there isn't. Keep in mind that this assumes there will always be a first and last name, with the middle initial being optional.

Split the string in JavaScript and then count the characters to decrypt

Answer №1

Answer №2

Answer №3

Similar questions

Displaying the Status of a Script that is Running Asynchronously

Access the child component within an @ChildComponent directive in Angular

Sending forms through the .NET platform

Kohana ajax causing removal of JQuery Data attributes

What is the solution to determining the width in AngularJS without taking the scrollbar size into account

What is the best method for selecting only files (excluding folders) in Gulp?

Searching in the Kendo Dropdown List using text and value

Running the Express service and Angular 6 app concurrently

Can you tell me the title of this pointer?

Updating a marker's latitude and longitude using Laravel, Google API, and Ajax: A step-by-step guide

Why isn't my Bootstrap dropdown displaying any options?

What could be causing the fourth tab to not show any data while the first three tabs are functioning as expected?

Is it possible to achieve a smooth transition to the right using CSS

What is the best way to showcase a table below a form containing multiple inputs using JavaScript?

What is the best way to implement an event listener for every button in a table row outcome?

Change the websocket origin to localhost in a javascript setting

Collaborate by sharing local storage with other systems

How can I add an object to an array of objects in Vue.js?

Sending data using the AJAX method with integers

Utilize a variable within the res.writeHeads() method in Node.js