Include/引用方式： ---- ``` <script src="your direct/varListener.min.js"></script> ``` Include before the js file witch need to listen variable/在需要监听变量的js文件前引用
Grammar/语法
varListen('variables',callBack(response),pollingTime,showLog)
Arguments/参数介绍
var variable01;
varListen(
'variable01', //The variable need to be listened.Variables should be involved in `quotes`.This argument is required.
//需要被监听的变量，变量需要用`引号`包围,必填参数。
function(res){ //Callback.Respose got 3 property: res.varLog ; res.varName ; res.varValue.This argument is required.
//回调，返回值有3个方法：res.varLog ; res.varName ; res.varValue。必填参数。
console.log(res.varLog) //res.varLog return a String: variableName = variableValue;
//res.varLog 返回一个字符串：变量名 = 变量数值;
console.log(res.varName) //res.varName return a String, the name of changed variable.
//res.varName 返回字符串：发生变化的变量名。
console.log(res.varValue) //res.Value return the value of changed variable.
//res.Value返回的是发生变化的变量值。
},
500, //This listen function based on polling.So this argument can set polling time.Optional, default: `500`ms;
//本控件的功能基于对变量的轮询，可以通过该参数设置轮询时间。可选项，默认为`500`毫秒。
15 //If this number argument been setted, a div whitch log variables'infos you setted before will be create to the body,and the div's fontSize will be set to this argument.
//And the Div can be draged to anywhere.Suitable for mobiles. Optional.
//如果此参数被设置，将会向body添加一个用来显示你所设定的变量信息的div,这个div是可以拖动的,而你设定的参数值将决定div的字体大小。
//适用于移动设备的测试。可选项。
)
This function can be repeated used to listen multiple variables.You can also set multiple variables in the first arguments in one function,
split variables with ,.
这个方法可以反复使用。也可以在同一个方法中的第一个参数中设置多个变量的监听。用,分隔变量。
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>varListener</title>
<script src="varListener.js"></script>
</head>
<body>
<script >
var variable01=1,
variable02=[1,2,3],
variable03="Hi~";
varListen('variable01,variable02',function(res){
console.log(res.varLog);
// alert(res.varName+"Changed")
console.log(res.varValue)
})
varListen('variable03,variable01',function(res){
if(res.varName=='variable03') { //way to select variable from variables you've setted
//可以通过此方法从你设置的变量中选择你要添加功能的变量
eval(res.varName + "+='Thanks~'") //way to handle with variable in response.equal to variable03+='Thanks~'
//可通过此方法从回调参数中抽取变量并使用。此行代码等同于variable03+='Thanks~'
}
},1000,20)
</script>
<input type="button" value="ChangeV01" onclick="variable01+=1">
<input type="button" value="ChangeV02" onclick="variable02.push(0)">
<input type="button" value="ChangeV03" onclick="variable03+='!'">
</body>
</html>
