| 1 | import formatDecimal from "./formatDecimal";
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| 2 |
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| 3 | export var prefixExponent;
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| 4 |
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| 5 | export default function(x, p) {
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| 6 | var d = formatDecimal(x, p);
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| 7 | if (!d) return x + "";
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| 8 | var coefficient = d[0],
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| 9 | exponent = d[1],
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| 10 | i = exponent - (prefixExponent = Math.max(-8, Math.min(8, Math.floor(exponent / 3))) * 3) + 1,
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| 11 | n = coefficient.length;
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| 12 | return i === n ? coefficient
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| 13 | : i > n ? coefficient + new Array(i - n + 1).join("0")
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| 14 | : i > 0 ? coefficient.slice(0, i) + "." + coefficient.slice(i)
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| 15 | : "0." + new Array(1 - i).join("0") + formatDecimal(x, Math.max(0, p + i - 1))[0];
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| 16 | }
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