Number(parseFloat(3000).toFixed(2)).toLocaleString('en', { minimumFractionDigits: 2 }); // result 123,233.12 Number(parseFloat(123233.12).toFixed(2)).toLocaleString('en', { minimumFractionDigits: 2 }); Do comment if you have any doubts or suggestions on this JS number format topic. Note:T...
function rmoney(s){ return parseFloat(s.replace(/[^\d\.-]/g,"")); } //金额合计的格式化s为要格式化的参数(浮点型),n为小数点后保留的位数 function fmoney(s,n){ n = n>0 && n<=20 ? n : 2; s = parseFloat((s+"").replace(/[^\d\.-]/g,"")).toFixed(n)+""; var l =...
parseFloat([]) // NaN parseFloat('FF2') // NaN parseFloat('') // NaN 1. 2. 3. 上面代码中,尤其值得注意,parseFloat会将空字符串转为NaN。 这些特点使得parseFloat的转换结果不同于Number函数。 parseFloat(true) // NaN Number(true) // 1 parseFloat(null) // NaN Number(null) // 0 parseFlo...
Number.isNaN('true'/'true') // true ES6将全局方法parseInt()和parseFloat(),移植到Number对象上面,行为完全保持不变。 Number.parseInt === parseInt // true Number.isInteger():用来判断一个值是否为整数。需要注意的是,在JavaScript内部,整数和浮点数是同样的储存方法,所以3和3.0被视为同一个值。 Number...
使用parseInt/parseFloat 进行“软”转换,它从字符串中读取数字,然后返回在发生 error 前可以读取到的值。 小数: 使用Math.floor,Math.ceil,Math.trunc,Math.round 或 num.toFixed(precision) 进行舍入。 请确保记住使用小数时会损失精度。 更多数学函数: ...
() converts strings to numbersThe global method parseFloat() converts strings to numbersMAX_VALUE returns the largest possible number in JavaScriptMIN_VALUE returns the smallest possible number in JavaScriptPOSITIVE_INFINITY represents infinityPOSITIVE_INFINITY is returned on overflowNEGATIVE_INFINITY ...
parseFloatis a top-level function and is not associated with any object. parseFloatparses its argument, a string, and returns a floating point number. If it encounters a character other than a sign (+ or -), numeral (0-9), a decimal point, or an exponent, it returns the value up to...
17.9 全局方法parseFloat()将字符串转换为数字 <!DOCTYPE html> JavaScript Global Methods The parseFloat() method converts strings to numbers: document.getElementById("demo").innerHTML = parseFloat("10") + "" + parseFloat("10.33") + "" + parseFloat("10 6") + "" + parseFloat("...
JavaScript Reserved Keywords - Explore the complete list of JavaScript reserved keywords, understand their significance, and enhance your coding skills with our in-depth analysis.
After the replacement, we convert the string to a float using theparseFloat()function to preserve any decimal point in the string. Remove Commas With thesplit()Method in JavaScript Thesplitmethod will take the comma in the string as a parameter, and it’ll return an array. This array contai...