JS----简单表单密码强度检验
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>表单常用的密码强度检验</title>
</head>
<body>
<input type="password" id = "oInput"/><span id = "oSpan"></span>
<script>
(function(win){
var showStrength = function(_this, showWrap) {
showWrap.style.fontFamily = "Microsoft Yahei";
var oValue = _this.value,
len = oValue.length,
strengthAll = 0;
var color = ["red", "orange", "green"],
strStrength = ["密码长度不得小于6", "密码强度为：初级","密码强度为：中级","密码强度为：高级"];
var strength = function(str) {
var code = str.charCodeAt(0);
if (code >= 48 && code <= 57) {
return 1;
}else if (code >= 97 && code <= 122) {
return 2;
}else {
return 3;
}
}
if (len < 6) {
showWrap.innerHTML = strStrength[0];
showWrap.style.color = color[0];
}else {
for (var i = 0; i < len; ++i) {
strengthAll += strength(oValue[i]);
}
if (strengthAll < 10) {
showWrap.innerHTML = strStrength[1];
showWrap.style.color = color[0];
}else if (strengthAll >= 10 && strengthAll < 16) {
showWrap.innerHTML = strStrength[2];
showWrap.style.color = color[1];
}else {
showWrap.innerHTML = strStrength[3];
showWrap.style.color = color[2];
}
}
}
win.showStrength = showStrength;
})(window)
</script>
<script>
var input = document.getElementById("oInput");
var span = document.getElementById("oSpan");
input.onkeyup = function() {
var self = this;
showStrength(self, span);
}
</script>
</body>
</html>效果类似：
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