Java subscript

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

Java subscript

// Java Subscript Numbers
//	Base	Char	Code
	0		₀		\u2080
	1		₁		\u2081
	2		₂		\u2082
	3		₃		\u2083
	4		₄		\u2084
    5		₅		\u2085
    6		₆		\u2086
    7		₇		\u2087
    8		₈		\u2088
    9		₉		\u2089

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