Implementation of sprintf function example of PHP based on JS_javascript skills

The example in this article describes the implementation of PHP's sprintf function based on JS. Share it with everyone for your reference, the details are as follows:

The function is as follows:

<script type="text/javascript">
function sprintf()
{
  var arg = arguments,
    str = arg[0] || '',
    i, n;
  for (i = 1, n = arg.length; i < n; i++) {
    str = str.replace(/%s/, arg[i]);
  }
  return str;
}
</script>

The first parameter is the string containing "%s", and the other parameters are the corresponding variables used to replace "%s".

For example:

<script type="text/javascript">
var str = "床前%s明光，疑是%s上霜；举头%s明月，低头%s故乡。",
  var1 = "明",
  var2 = "地",
  var3 = "望",
  var4 = "思";
str = sprintf(str, var1, var2, var3， var4);
</script>

I hope this article will be helpful to everyone in JavaScript programming.