Use javascript to replace perl-style Variables

The replacement of perl-style variables provides better readability. In common javascript programming, there are many + numbers, which are dazzling. Good news: we can use regular expressions to convert programming styles.

The following example specifies that the string in $ {} is the variable name and defines the varReplace prototype function to replace the variable:

 
 

  
  
String. prototype. varReplace = function (){
  
  
Var pttrn =/\$ {(\ w +)}/g;
  
  
Return this. replace (pttrn, function (a, B) {return eval (B )});
  
  
}
  
  
 
  
  
Var myVar1 = "#00ff11 ";
  
  
Var myVar2 = "test ";
  
  
Var myStr1 = '<font color = "$ {myVar1}"> <B >$ {myVar2} </B> </font>'; // perl Style
  
  
Var myStr2 = '<font color = "' + myVar1 + '"> <B>' + myVar2 + '</B> </font>'; // javascript Style
  
  
 
  
  
IJs.pt ("myStr1.varReplace ()");
  
  
IJs.pt ("myStr2 ");
 
 

Debugging information:
MyStr1.varReplace () Test
MyStr2 Test 

This article is from the iData blog, please be sure to keep this source http://idata.blog.51cto.com/4581576/1108042