How to convert a String containing Scientific Notation to correct Javascript number format(如何将包含科学记数法的字符串转换为正确的 Javascript 数字格式)
问题描述
我有一个字符串例如:4.874915326E7"
.将其转换为 javascript 数字格式的最佳方法是什么?(整数或浮点数)?如果我尝试 parseInt(),最后的 E 将被忽略.
I have a String e.g: "4.874915326E7"
. What is the best way to convert it to a javascript number format? (int or float)? if I try parseInt(), the E at the end is ignored.
推荐答案
将科学计数法中的数字转换为字符串:
另一个问题
ConvertingaNumberinScientificNotationtoaString:
This is best answered by another question, but from that question I personally like the solution that uses .toLocaleString()
. Note that that particular solution doesn't work for negative numbers. For your convenience, here is an example:
(4e+27).toLocaleString('fullwide', {useGrouping:false}) // returns "4000000000000000000000000000"
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