JavaScript String .charAt() Method
let a = "Hello".charAt(4);
console.log('a =',a);
Output
a = o
JavaScript String .concat() Method
let b = "Hello".concat(" ","World");
console.log('b =',b);
Output
b = Hello World
JavaScript String .startsWith() Method
let c = "Hello".startsWith("e");
console.log('c =',c);
Output
c = false
JavaScript String .endsWith() Method
let d = "World".endsWith("d");
console.log('d =',d);
Output
d = true
JavaScript String .includes() Method
let e = "Hello World".includes("World");
console.log('e =',e);
Output
e = true
JavaScript String .indexOf() Method
let f = "Hello World".indexOf("World");
console.log('f =',f);
Output
f = 6
JavaScript String .lastIndexOf() Method
let g = "Hello World in JavaScript".lastIndexOf("in");
console.log('g =',g);
Output
g = 12
JavaScript String .match() Method
let h = "Hello World in JavaScript Hello World".match(/Wor/g);
console.log('h =',h);
Output
h = [ 'Wor', 'Wor' ]
JavaScript String .padStart() Method
let i = "Hello World".padStart(12,"1");
console.log('i =',i);
Output
i = 1Hello World
JavaScript String .padEnd() Method
let j = "Hello World JavaScript".padEnd(23,"|");
console.log('j =',j);
Output
j = Hello World JavaScript|
JavaScript String .repeat() Method
let k = "Hello ".repeat(3);
console.log('k =',k);
Output
k = Hello Hello Hello
JavaScript String .replace() Method
let l = "Hello World".replace('Wor','Co');
console.log('l =',l);
Output
l = Hello Cold
JavaScript String .search() Method
let m = "Hello World".search('r');
console.log('m =',m);
Output
m = 8
JavaScript String .slice() Method
let n = ["Hello", "World" , "JavaScript" , "Language"].slice(1,3);
console.log('n =',n);
Output
n = [ 'World', 'JavaScript' ]
JavaScript String .split() Method
let o = "Hello World JavaScript Language".split("World");
console.log('o =',o);
Output
o = [ 'Hello ', ' JavaScript Language' ]
JavaScript String .substring() Method
let p = "Hello World".substring(1,7);
console.log('p =',p);
Output
p = ello W
JavaScript String .toLowerCase() Method
let q = "Hello World".toLowerCase();
console.log('q =',q);
Output
q = hello world
JavaScript String .toUpperCase() Method
let r = "Hello World".toUpperCase();
console.log('r =',r);
Output
r = HELLO WORLD
JavaScript String .trim() Method
let s = " Hello World ".trim();
console.log('s =',s);
Output
s = Hello World
JavaScript String .trimStart() Method
let t = " Hello World ".trimStart();
console.log('t =',t);
Output
t = Hello World
JavaScript String .trimEnd() Method
let u = " Hello World ".trimEnd();
console.log('u =',u);
Output
u = Hello World