javascript get first 10 characters of string
var str = "Hello world That is reallly neat!";
var res = str.substring(0, 5);//get first 5 chars
javascript get first 10 characters of string
var str = "Hello world That is reallly neat!";
var res = str.substring(0, 5);//get first 5 chars
js substring
// the substring method returns a string out of another string
const str = 'Mozilla';
console.log(str.substring(1, 3));
// expected output: "oz"
console.log(str.substring(2));
// expected output: "zilla"
substring javascript
var str = "Hello world!";
var res = str.substring(1, 4); //ell
substring in javascript
let str = "abcdefghi"
// index-> 012456789
// str.slice(±start, ±end)
console.log(str.slice(2, 5)) // cde
console.log(str.slice(-5, -3)) // ef
// str.subString(+start, +end) // can't take -ve index
console.log(str.substring(2, 5)) // cde
console.log(str.substring(5, 2)) // cde
// str.substr(±start, length)
console.log(str.substr(2, 5)) // cdefg
substring
const str = 'Mozilla';
console.log(str.substring(1, 3));
// expected output: "oz"
console.log(str.substring(2));
// expected output: "zilla"
substr() javascript
const str = 'substr';
console.log(str.substr(1, 2)); // (1, 2): ub
console.log(str.substr(1)); // (1): ubstr
/* Percorrendo de trás para frente */
console.log(str.substr(-3, 2)); // (-3, 2): st
console.log(str.substr(-3)); // (-3): str
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