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A JavaScript example code to remove blanks at the end of a string_javascript skills

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Release： 2016-05-16 16:35:56

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<!DOCTYPE html> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 
<title>每天一个JavaScript实例-去除字符串末尾的空白</title> 
<script> 
function white(){ 
var input = document.getElementById("inputid"); 
var lines = input.value.split("\n"); 
var resultString = ""; 
for (var i = 0; i < lines.length; i++){ 
var string = lines[i].trim(); 
resultString += string + "-"; 
} 
alert(resultString); 
} 
</script> 
</head> 

<body> 
<textarea id="inputid" placeholder="请输入多行字符串"></textarea> 
<a href="#" onClick="white()">clickMe</a> 
</body> 
</html>

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Detect lower version browsers, backward compatible:

if(typeof String.trim == "undefined") 
String.prototype.trim = function(){ 
return this.replace(/(^\s*)|(\s*$)/g,""); 
} 
}

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Related labels：

string end blank

source：php.cn

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