sous-chaîne de flottement
var string = 'dartlang';
string.substring(1); // 'artlang'
string.substring(1, 4); // 'art'
devilkhan007
var string = 'dartlang';
string.substring(1); // 'artlang'
string.substring(1, 4); // 'art'// To remove or add anything at the end or to the start of the string