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Example of javascript implementation of decimal rounding function

陈政宽～Original: 2017-06-28 12:50:261132browse

This article mainly introduces javascript to implement a very simple decimal rounding function, and analyzes the related operation skills of JavaScript mathematical operations rounding based on specific examples. Friends who need it can For reference,

The example in this article describes how to implement a very simple decimal rounding function in javascript. Share it with everyone for your reference, the details are as follows:

JS core code:

function truncateNumber(n){
  return n|0;
}

Usage example:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>JS小数取整</title>
</head>
<body>
<script >
function truncateNumber(n){
return n|0;
}
console.log(truncateNumber(12.345));
</script>
</body>
</html>

The running effect diagram is as follows:

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