NumUtils class
create_user: zhengzaihong email:1096877329@qq.com create_date: 2024/4/12 create_time: 9:59 describe: 数字转化工具
Constructors
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
base64ToBigInt(
String str) → BigInt? -
base64ToNum(
String str) → num? - Base64转数字
-
bigIntToBase64(
BigInt value) → String -
bigIntToString(
BigInt? value, {bool withComma = false}) → String -
clamp(
num value, num min, num max) → num - 限制数值范围
-
formatCurrency(
num? value, {String symbol = '¥', int fractionDigits = 2}) → String - 格式化为货币（默认¥，可传入其他符号）
-
formatPercent(
num? value, {int fractionDigits = 2}) → String - 格式化为百分比
-
formatScientific(
num? value, {int fractionDigits = 2}) → String - 格式化为科学计数法
-
formatWithComma(
num? value, {int fractionDigits = 2}) → String - 格式化为千分位（默认保留2位小数）
-
isNumeric(
String? s) → bool - 是否为数字字符串
-
numToBase64(
num value) → String - 数字转Base64
-
parse(
String valueStr, {int? fractionDigits}) → num? - 解析字符串为数字（支持保留小数位数）
-
parseBigInt(
String value) → BigInt? -
random(
{double min = 0, double max = 1, int fractionDigits = 2}) → double - 生成随机数（支持范围和小数位数）
-
round(
num? value, int fractionDigits) → num? - 按指定小数位数四舍五入
-
safeAdd(
BigInt? a, BigInt? b) → BigInt -
safeDivide(
num a, num b, {double def = 0.0}) → double - 安全除法（除数为0时返回默认值）
-
safeDivideBigInt(
BigInt? a, BigInt? b) → BigInt? -
safeMultiply(
BigInt? a, BigInt? b) → BigInt -
safeSubtract(
BigInt? a, BigInt? b) → BigInt