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description String
keywords js,operator
title string
toc_max 4

string

  • string is stored text type data
  • string represent by one quote ' ' or double qoute " " and es6 back tick ``
let user = 'kamal';
console.log(user);
// kamal
  • string concat by +
let user = 'kamal';
let position = 'code artist';

console.log(users + ' ' + 'is a ' + position)
// kamal is a code artist
  • string interpolation by es6
let user = 'kamal';
let position = 'code artist';

console.log(`${user} is a ${position}`);
// kamal is a code artist
name name name name
fromCharCode fromCodePoint anchor big
blink bold charAt charCodeAt
charPointAt concat endsWith fixed
fontColor fontSize includes indexof
italics lastIndexOf link localCompare
match normalize padEnd padStart
repeat replace search slice
small split startsWith strike
sub substr substring sup
toLocaleLowerCase toLocaleUpperCase toUpperCase toUppercase
toSource toString trim(L,R) valueOF

length

let users = 'kamal is a code artist';
let len = users.length;
console.log(len);
// 23

charAt

let users = 'kamal is a code artist';
let result = users.charAt(1);
console.log(result);
// a

charCodeAt

let users = 'kamal is a code artist';
let result = users.charPointAt(1);
console.log(result);
// 97

charPointAt

  • same as charCodeAt
  • non negative integer

concat

let users = 'kamal is a code artist';
let result = users.concat(' and web developer.');
console.log(result);
// kamal is a code artist and web developer

includes

let users = 'kamal is a code artist';
let result = users.includes('kamal',0);
console.log(result);
// true

endsWith

let users = 'kamal is a code artist';
let result = users.endsWith('artist',22);
console.log(result);
// true

padEnd

let name = 'kamal';
let result = name.padEnd(10,'a');
console.log(result);
// kamalaaaaa

padStart

let name = 'kamal';
let result = name.padStart(10,'a');
console.log(result);
// aaaaakamal

repeat

let name = 'kamal';
let result = name.repeat(2);
console.log(result);
// kamalkamal

replace

let name = 'kamal is a code artist';
let result = name.replace('kamal','code4mk');
console.log(result);
// code4mk is a code artist

search

  • found = positive integer (0 =>)
  • not found = negative integer (-1....)
let name = 'kamal is a code artist';
let result = name.search('code');
console.log(result);
// 11

slice

let name = 'kamal is a code artist';
let result = name.slice(13);
console.log(result);
// kamal is a co

substr

let name = 'kamal is a code artist';
let result = name.substr(0,13);
console.log(result);
// kamal is a co

substring

  • same as substr
let name = 'kamal is a code artist';
let result = name.substring(0,13);
console.log(result);
// kamal is a co

split

let name = 'blog.facebook.com';
let result = name.split('.',2);
console.log(result);
// ["blog", "facebook"]

toUpperCase

let name = 'kamal is a code artist';
let result = name.toUpperCase();
console.log(result);
// KAMAL IS A CODE ARTIST

toLowerCase

let name = 'KAMAL IS A CODE ARTIST';
let result = name.toLowerCase();
console.log(result);
// kamal is a code artist

resource