上篇文章「JavaScript檢測原始值、引用值、屬性」中涉及了大量有用的代碼範例,爲了讓大家更方便的使用這些代碼,博主特意把這些代碼重新整理並託管到 GitHub,項目地址是:https://github.com/stone0090/s-fontend/tree/master/me/basevalidate。
basevalidate.js 包含 14個獨立檢測方法 和 1個綜合檢測方法,示例代碼如下:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>basevalidate test</title>
<script type="text/javascript" src="basevalidate.js"></script>
<script>
var Person = function(){
this.name = 'stone';
this.age = 30;
}
var person = new Person();
var nums = [123, 456, 789];
// 14個獨立檢測方法
console.log(baseValidate.isString(null));
console.log(baseValidate.isNumber(null));
console.log(baseValidate.isBoolean(null));
console.log(baseValidate.isUndefined(null));
console.log(baseValidate.isNull(null));
console.log(baseValidate.isObject(null));
console.log(baseValidate.instanceOf(null));
console.log(baseValidate.isFunction(null));
console.log(baseValidate.isArray(null));
console.log(baseValidate.isProperty(null));
console.log(baseValidate.isOwnProperty(null));
console.log(baseValidate.isDomProperty(null));
console.log(baseValidate.isBomProperty(null));
console.log(baseValidate.isEmpty(null));
// 1個綜合檢測方法 baseValidate(value, object),等價於 baseValidate.validateAll(value ,object)
console.log(baseValidate('123'));
console.log(baseValidate(123));
console.log(baseValidate(true));
console.log(baseValidate(person, Person));
console.log(baseValidate(nums));
console.log(baseValidate('age', person));
console.log(baseValidate('name', person));
console.log(baseValidate(alert));
console.log(baseValidate(document.getElementById));
// 以下皆爲 isEmpty() 方法爲 false 的情況
console.log(baseValidate()); // 不傳參數,參數默認爲 undefined
console.log(baseValidate(null));
console.log(baseValidate(''));
console.log(baseValidate(0));
console.log(baseValidate(false));
console.log(baseValidate({}));
console.log(baseValidate([]));
console.log(baseValidate(NaN));
</script>
</head>
<body></body>
</html>
測試結果如下:
不知道大家有沒有發現,其中一個結果好像不太正確,console.log(baseValidate('name', person))
爲什麼會輸出 isBomProperty: true
,這是因爲window
對象中也有 name
屬性,所以 name
也被認爲是 BOM 的屬性。
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