Math.random() returns a random number between 0 (included) and 1 (excluded)How to return a random integer between 0 and 9 (both included)How to return a random integer between 0 and 10 (both included)How to ret
random()Returns a random number between 0 and 1 round(x)Rounds x to the nearest integer sign(x)Returns the sign of a number (checks whether it is positive, negative or zero) sin(x)Returns the sine of x (x is in radians) sinh(x)Returns the hyperbolic sine of x ...
(10)isFinite(number) 检测一个值能否为一个有限数字,返回True或False (11)isNaN(string) 检测一个值能否没有是一个有限数字 (12)decodeURI() 为编码的URI地址解码 (13)decodeURIComponent() 为 编码后的URI组件解码 (14)encodeURI() 将字符串加密为URI (15)encodeURIComponent() 将字符串编码为URI组件 2...
//typeof操作符的操作数可以是变量(message)、也可以是数值字面量,操作符返回下列字符串"undefined":这个值未定义"boolean":布尔值"string":字符串"number":数值"object":对象或null"function":函数 eg:varmessage="some string"; alert(typeofmessage);//"string"alert(typeof(message));//"string"alert(typ...
1. 多条件检查 把多个值放在一个数组中,然后调用数组的 includes 方法。 2. 简化 if true...else 对于不包含大逻辑的 if-else 条件,可以使用下面的快捷写法。我们可以简单地使用三元运算符来实现这种简化。 如果有嵌套的条件,可以这么做。 3. if 判断值是否存在 ...
1.严格模式 使用严格模式,可以在函数内部进行较为严格的全局和局部的错误条件检查 严格模式的编译指示,"use strict" 创建全局变量,未声明变量,非严格模式下为创建全局变量;严格模式下为抛出ReferenceError 对变量调用delete操作符,删除变量,非严格模式下为静默失败;严格模式下为抛出ReferenceError 操作对象情况下:a,只读属...
chance.js - Random generator helper in JavaScript. Can generate numbers, strings etc. odometer - Smoothly transitions numbers with ease. accounting.js - A lightweight JavaScript library for number, money and currency formatting - fully localisable, zero dependencies. money.js - A tiny (1kb) Jav...
anime.bezier(x1, x2, y1, y2); // Return function(t) anime.timeline() Create a timeline to synchronise other Anime instances. var timeline = anime.timeline(); timeline.add([instance1, instance2, ...]); ➜ Timeline examples anime.random(x, y) Generate a random number between two n...
padding[number]: Padding between bars. Default:0.1. roughness[number]: Roughness level of chart. Default:1. simplification[number]: Chart simplification. Default0.2. stroke[string]: Color of bars' stroke. Default:black. strokeWidth[number]: Size of bars' stroke. Default:1. ...
1.语法级模拟 lua与js语言差异 1.1注释 js 为//,lua为--. 1.2变量 js利用var来声明全局变量不存在局部变量,lua则不需要直接定位则为全局变量,local声明则为局部变量。 1.3运算符 js + - * / % ++ -- = += -= *= /= %= 支持字符串 + ...