EN
JavaScript - String charAt() method example
4
points
// ONLINE-RUNNER:browser;
var text = 'abc';
console.log( text.charAt( 0) ); // a
console.log( 'abc'.charAt(0) ); // a
console.log( 'abc'.charAt(1) ); // b
console.log( 'abc'.charAt(2) ); // c
console.log( text.charAt() ); // a
console.log( text.charAt(-1) == '' ); // true
console.log( text.charAt(10) == '' ); // true
console.log( text.charAt(null) ); // a
1. Documentation
| Syntax | String.prototype.charAt(index) |
| Parameters | index - integer number value (primitive value). |
| Result | Character from index position (primitive value). |
| Description | charAt takes only one parameter and return single character from index position inside string. |
2. String square bracket operator ([ ]) approach example
Bracket operator is alternative approach to get specific character from string.
// ONLINE-RUNNER:browser;
var text = 'abc';
console.log( text[0] ); // a
console.log( text[1] ); // b
console.log( text[2] ); // c
console.log( text[-1] ); // undefined
console.log( text[10] ); // undefined
console.log( text[null] ); // undefined