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Add String.Format method to javascript_javascript tips

WBOY
Release： 2016-05-16 18:42:13
Original
1133 people have browsed it
Copy code The code is as follows:

String.format = function()
{
if ( arguments.length == 0 )
{
return null;
}
var str = arguments[0];
for(var i=1;i{
var re = new RegExp('\{' (i-1) '\}','gm');
str = str.replace(re, arguments[i]);
}
return str;
}

Usage: String.format('Hello. My name is {0} {1}.', firstName, lastName);
Related labels：
javascript
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