单位换算js

numberFormat(value) {var param = {};var k = 10000,sizes = ['', '万', '亿', '万亿'],i;if (value < k) {param.value = value;param.unit = ""} else {i = Math.floor(Math.log(value) / Math.log(k));param.value = ((value / Math.pow(k, i))).toFixed((2));param.unit = sizes[i];}let str = param.value + param.unitreturn str;}