javascript get first 10 characters of string
var str = "Hello world That is reallly neat!";
var res = str.substring(0, 5);//get first 5 charsjavascript get first 10 characters of string
var str = "Hello world That is reallly neat!";
var res = str.substring(0, 5);//get first 5 charsjs 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"javascript substr vs substring
let demo = 'This is a normal sentence';
// substr
// The substr method takes two parameters
// param 1 - the starting index to copy from a string
// param 2 - the number of characters that must be copied from the starting index
let newDemo = demo.substr(3, 5);
// newDemo would be 's is '
// substring
// The substring method takes 1 mandatory and 1 optional parameter
// param 1 - the starting index to copy from a string
// param 2 - (optional) the ending index that will be copied until from the starting index.
// - it will not include the ending index position
// - if this param is left blank. it defualts to the rest of the string
let newDemo = demo.substring(0, 3);
// newDemo would be 'Thi'
let newDemo = demo.substring(3);
// newDemo would be 's is a normal sentence'substring javascript
var str = "Hello world!";
var res = str.substring(1, 4); //ellsubstring
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): strCopyright © 2021 Codeinu
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