使用 JavaScript 拆分名字和姓氏

Question

I have a user with the name Paul Steve Panakkal . It's a long name it won't fit to the div container. So is there anyway to split first name and last name from it using JavaScript or jQuery?

The name is got from PHP into a variable in JavaScript. This is then splitted using JS.

Answer 1

You should use the String.prototype.split() method:

'Paul Steve Panakkal'.split(' '); // returns ["Paul", "Steve", "Panakkal"]

You can use it this way:

'Paul Steve Panakkal'.split(' ').slice(0, -1).join(' '); // returns "Paul Steve"
'Paul Steve Panakkal'.split(' ').slice(-1).join(' '); // returns "Panakkal"

So in common:

var firstName = fullName.split(' ').slice(0, -1).join(' ');
var lastName = fullName.split(' ').slice(-1).join(' ');

Answer 2

Yes:

var fullName = "Paul Steve Panakkal".split(' '),
    firstName = fullName[0],
    lastName = fullName[fullName.length - 1];

References:

• string.split() .

Answer 3

In Spanish it can be tricky because you may have a second optional name and even complex surnames like "del Bosque" or "de la Hoya", vowels with accent marks and the ñ . The following javascript is capabable of parsing a full spanish name, having in count you are writting it respecting the upper and lower cases. It will return a json giving you

1. name : 1 or 2 main names
2. lastName : the main lastname
3. secondLastName : The second lastname

The code is:

function parseName(input) {
        var fullName = input || "";
        var result = {};

        if (fullName.length > 0) {
            var nameTokens = fullName.match(/[A-ZÁ-ÚÑÜ][a-zá-úñü]+|([aeodlsz]+\s+)+[A-ZÁ-ÚÑÜ][a-zá-úñü]+/g) || [];

            if (nameTokens.length > 3) {
                result.name = nameTokens.slice(0, 2).join(' ');
            } else {
                result.name = nameTokens.slice(0, 1).join(' ');
            }

            if (nameTokens.length > 2) {
                result.lastName = nameTokens.slice(-2, -1).join(' ');
                result.secondLastName = nameTokens.slice(-1).join(' ');
            } else {
                result.lastName = nameTokens.slice(-1).join(' ');
                result.secondLastName = "";
            }
        }

        return result;
}

The surnames are required if you are going to specify a second name. Try it out with:

• Vicente Hernández Planes
• Oscar de la Hoya
• José Julian Martí Pérez
• Manuel de Céspedes del Castillo
• Calixto García Íñiguez

Even try out a complex one like

• María de la Caridad del Bosque y Loynáz

Comment your experiences with it.

Answer 4

我认为，是时候开始使用正则表达式了 :)

"Paul Steve Panakkal".split(/(\s).+\s/).join("") // "Paul Panakkal"

Answer 5

The most common solution, where we always take the first word for the first name and the rest for the last name:

 const splitName = (name = '') => { const [firstName, ...lastName] = name.split(' ').filter(Boolean); return { firstName: firstName, lastName: lastName.join(' ') } } console.log(splitName('Jon Snow')); console.log(splitName(' Jon ')); console.log(splitName(' Jon The White Wolf '));

Answer 6

Extended version of Speransky Danil's answer which handles the case where the supplied string has only one word in it.

/**
 * Gets the first name, technically gets all words leading up to the last
 * Example: "Blake Robertson" --> "Blake"
 * Example: "Blake Andrew Robertson" --> "Blake Andrew"
 * Example: "Blake" --> "Blake"
 * @param str
 * @returns {*}
 */
exports.getFirstName = function(str) {
    var arr = str.split(' ');
    if( arr.length === 1 ) {
        return arr[0];
    }
    return arr.slice(0, -1).join(' '); // returns "Paul Steve"
}

/**
 * Gets the last name (e.g. the last word in the supplied string)
 * Example: "Blake Robertson" --> "Robertson"
 * Example: "Blake Andrew Robertson" --> "Robertson"
 * Example: "Blake" --> "<None>"
 * @param str
 * @param {string} [ifNone] optional default value if there is not last name, defaults to "<None>"
 * @returns {string}
 */
exports.getLastName = function(str, ifNone) {
    var arr = str.split(' ');
    if(arr.length === 1) {
        return ifNone || "<None>";
    }
    return arr.slice(-1).join(' ');
}

Answer 7

I tried below code and it works cool for me

var full_name = 'xyz abc pqr';
var name = full_name.split(' ');
var first_name = name[0];
var last_name = full_name.substring(name[0].length.trim());

In above example:

(1)

If full_name = 'xyz abc pqr';
first_name = "xyz";
last_name = "abc pqr";

(2)

If `full_name = "abc"`:
Then first_name = "abc";
and last_name = "";

Answer 8

A comenter said What if want first name to be "Paul" and last name "Steve Panakkal"

 var name = "Paul Steve Panakkal" // try "Paul", "Paul Steve" var first_name = name.split(' ')[0] var last_name = name.substring(first_name.length).trim() console.log(first_name) console.log(last_name)

Answer 9

if you assume the last word is the last name and a single word name is also a last name then ...

var items = theName.split(' '),
    lastName = items[items.length-1],
    firstName = "";

for (var i = 0; i < items.length - 1; i++) {
   if (i > 0) {
      firstName += ' ';
   }
   firstName += items[i];
}

Answer 10

Watch out for edge-cases like only a first name being provided or two or more spaces being entered. If you only want to parse out the first and last name, this will do the trick (full name should always contain at least 1 character to avoid first_name being set to an empty string):

var full_name_split = "Paul Steve Panakkal".split(" ");
var first_name = full_name_split[0];
var last_name = full_name_split.length > 1 ? full_name_split[full_name_split.length - 1] : null;

Answer 11

There are many ways to Archive this.

I think the easiest way is to split and pop the last name.

 let fullname = 'Paul Steve Panakkal'; // from php let tmpArray = fullname.split(' '); //split the name to an array const lastname = tmpArray.pop(); // pop the last element of the aray and store it in "lastname" variable const firstname = tmpArray.join(' '); // join the array to make first and middlename and store it in "firstname" variale console.log("firstname:", firstname) console.log("lastname:", lastname)

Answer 12

Use this code:

You'll need to change the line: splitFullName("firstName","lastName","fullName"); and make sure it includes the right field IDs from your form.

---

function splitFullName(a,b,c){
    String.prototype.capitalize = function(){
        return this.replace( /(^|\s)([a-z])/g , function(m,p1,p2){ return p1+p2.toUpperCase(); } );
    };
    document.getElementById(c).oninput=function(){
        fullName = document.getElementById(c).value;
        if((fullName.match(/ /g) || []).length ===0 || fullName.substring(fullName.indexOf(" ")+1,fullName.length) === ""){
            first = fullName.capitalize();;
            last = "null";
        }else if(fullName.substring(0,fullName.indexOf(" ")).indexOf(".")>-1){
            first = fullName.substring(0,fullName.indexOf(" ")).capitalize() + " " + fullName.substring(fullName.indexOf(" ")+1,fullName.length).substring(0,fullName.substring(fullName.indexOf(" ")+1,fullName.length).indexOf(" ")).capitalize();
            last = fullName.substring(first.length +1,fullName.length).capitalize();
        }else{
            first = fullName.substring(0,fullName.indexOf(" ")).capitalize();
            last = fullName.substring(fullName.indexOf(" ")+1,fullName.length).capitalize();
        }
        document.getElementById(a).value = first;
        document.getElementById(b).value = last;
    };
    //Initial Values
    if(document.getElementById(c).value.length === 0){
        first = document.getElementById(a).value.capitalize();
        last = document.getElementById(b).value.capitalize();
        fullName =  first + " " + last ;
        console.log(fullName);
        document.getElementById(c).value = fullName;
    }
}

//Replace the ID's below with your form's field ID's
splitFullName("firstName","lastName","fullName");

---

Source: http://developers.marketo.com/blog/add-a-full-name-field-to-a-marketo-form/

Answer 13

You needn't use any split method and create unnecessary arrays for that operation. Just use lastIndexOf and substring methods of javascript.

var s = "Paul Steve Panakkal";
var a = s.lastIndexOf(' '); // last occurence of space
var b = s.substring(0, a); // Paul Steve
var c = s.substring(a+1); // Panakkal

Answer 14

 const fullName = 'Paul Steve Panakkal'.split(' '); const lastName = fullName.pop(); // 'Panakkal' const firstName = fullName.join(' '); // 'Paul Steve' console.log(firstName); console.log(lastName);

Answer 15

Use the following code, it works for me

 let name = "Paul Steve Panakkal" let parts = name.split(' ') let firstName = parts.shift(); // Paul let lastName = parts.join(' '); // Steve Panakkal console.log({ firstName, lastName })

Answer 16

var firstName = fullName.split(" ")[0];

Answer 17

Another alternative could be using regular expression.

\w+\s\w+(?=\s)|\w+

The above regex will find firstName and lastName string pattern which matches two or three combinations of naming types.

 const regex = /\w+\s\w+(?=\s)|\w+/g; const name1 = 'Paul Steve Panakkal'; const [firstName1, lastName1] = name1.trim().match(regex); console.log(`${firstName1} | ${lastName1}`); const name2 = 'John Doe'; const [firstName2, lastName2] = name2.trim().match(regex); console.log(`${firstName2} | ${lastName2}`);

Details

• \w+ Match any word character.
• ?=\s Match any whitespace character but not catching it.

Answer 18

use JS split with space as delimitter.

https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/String/split

Answer 19

If you mean the last name is all the names after the first name, just use:

var name = "Paul Steve Panakkal";
var arrName = name.split(" ");
var firstName = arrName.slice(0, 1).join(' ');
var lastName = arrName.slice(1, arrName.length).join(' ');

Answer 20

This way, both firstName and lastName are always correct

var names = fullName.split(' ');
if (!names || names.length <= 1) {
   firstName = this.name;
   lastName = '';
} else {
   firstName = names.slice(0, -1).join(' ');
   lastName = names.slice(-1).join(' ');
}

Answer 21

var fullName = "Paul Steve Panakkal";

You can use the split function to split the full name then the result like displaying elements in an array or list.

This is what happens when you use the split function.

fullName.split(" ")

["Paul", "Steve", "Panakkal"]

This is not saved to any variable. You can perform the split function and assign an element to a well defined variable like this.

var firstName = fullName.split(" ")[0];

var lastName = fullName.split(" ")[1];

var otherName = fullName.split(" ")[2];

Answer 22

I came up with this logic:

const fullName = "Paul Steve Panakkal";
const idx = fullName.lastIndexOf(' ');
const firstName = idx !== -1 ? fullName.substring(0, idx) : fullName;
const lastName = idx !== -1 ? fullName.substring(idx + 1) : '';
console.log('firstName:', firstName, 'lastName:', lastName);

output:

firstName: Paul Steve lastName: Panakkal

Answer 23

"  Paul Steve   ".trim().split(/(\s).+\s/).join("")  // 'Paul Steve'

您应该添加trim()以防用户不小心输入了额外的空格！

Answer 24

If you want the last name to be all the names after the first name:

function splitFirstLast(name) {
  return {
    firstName: name.indexOf(' ') !== -1 && name.substring(0, name.indexOf(' ')) || name,
    lastName: name.indexOf(' ') !== -1 && name.substring(name.indexOf(' ') + 1) || ''
  }
}

Answer 25

Objects can do the Trick with a simple function:

 const fullName = "Edgar Allan Poe" const formatter = (name) => { const splitedName = name.trim().split(' ') if(splitedName.length === 0) return "" //here happens the hack!, it prevents duplicate names //JS objects overrides duplicate keys, very useful here const output = { [splitedName[0]]: splitedName[0], //storing first key [splitedName[splitedName.length - 1]]: splitedName[splitedName.length - 1] //storing last key (whose may be first key) } return Object.keys(output).join(' ').trim() //now convert object keys into a string. "E pronto rs" } console.log(formatter(fullName)) // "Edgar Poe" console.log(formatter("Elias")) // "Elias" console.log(formatter("")) // ""

Answer 26

This function will break any name into first name and last name storing the last word as the last name and everything else as the first name. It returns an object which contains the separated names:

 function parseName(fullName) { const name = fullName.split(' ') const person = {} if (name.length > 1) { person.lastName = name.pop() person.firstName = name.join(' ') } else { person.lastName = "" person.firstName = obj.name } return person } console.log(parseName("Ashak Zahin Hasan")) // { firstName: "Ashak Zahin", lastName: "Hasan" }