javascript 前端合集

js-xlsx纯前端导出excel

https://blog.csdn.net/tian_i/article/details/84327329
https://blog.csdn.net/u013594477/article/details/79971130

js 函数的防抖(debounce)与节流(throttle)

https://www.cnblogs.com/cc-freiheit/p/10827372.html

JavaScript中split函数中的正则表达式

https://blog.csdn.net/yexudengzhidao/article/details/106802520

通过js转base64字符串为文件并下载文件

https://blog.csdn.net/u010503822/article/details/106699416

JS日期格式化转换方法

https://www.cnblogs.com/tugenhua0707/p/3776808.html

前端post请求方式传参参数各种格式详解，form-data，application/x-www-form-urlencoded，application/json，text/xml

https://blog.csdn.net/qq_43305958/article/details/108362890

JavaScript格式化数字最多保留4位小数

https://blog.csdn.net/idaine/article/details/109144800

/**
 * 格式化数字最多保留4位小数
 * @param {*} number 需要格式化的数
 */
let maxDecimal = (number) => {
    
    
  return String(number).replace(/^(.*\..{4}).*$/, "$1")
}

console.log(maxDecimal(12.3321432)) // 12.3321
console.log(maxDecimal(12.15)) // 12.15
console.log(maxDecimal(12)) // 12