如何从字符串中仅提取应该为“ 5”的最后一个数字?
var str = "1000040928423195 points added to your balance";
var str = parseInt(str);
var lastNum = str.substr(str.length - 1);
console.log(lastNum);
给你串...
var str = "1000040928423195 points added to your balance";
...我们可以使用正则表达式提取所有数字...
var onlyNumbers = str.replace(/\D/g,'');
...,最后得到最后一个:
var lastNumber = onlyNumbers.substring(onlyNumbers.length - 1);
这是一个演示:
var str = "1000040928423195 points added to your balance";
var onlyNumbers = str.replace(/\D/g,'');
var lastNumber = onlyNumbers.substring(onlyNumbers.length - 1);
console.log(lastNumber);
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