<!DOCTYPE html>
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<head>
<meta charset="UTF-8" />
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<title>Document</title>
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<body>
<script>
const formatBigNumber = (number, decimalPlaces = 2) => {
debugger
if (typeof number !== 'number' && typeof number !== 'string') {
return console.warn(`Input must be a number or a string representation of a number. but get ${typeof number}`)
}
number = parseFloat(number)
if (Math.abs(number) < 10000) {
return { count: number.toFixed(decimalPlaces), unit: '' }
}
const units = ['', '万', '亿']
const unitIndex = Math.floor((parseInt(number).toString().length - 1) / 4)
const unit = units[Math.min(unitIndex, 2)]
let result
if (unitIndex > 0) {
result = (number / Math.pow(10, unitIndex * 4)).toFixed(decimalPlaces)
} else {
result = number.toFixed(decimalPlaces)
}
return {
count: result,
unit
}
}
formatBigNumber(3323805.27)
</script>
</body>
</html>