为 JS 添加 类似php的 in_array()方法.

 

Array.prototype.inArray = function (value) //Returns true if the passed value is found in the //array. Returns false if it is not. { var i; for (i=0; i < this.length; i++){ // Matches identical (===), not just similar (==). if (this[i] === value){ return true; } } return false; }; 

调用的例子:

var objArr       = document.getElementByName("text");

var testString = "testValue";

if (objArr.inArray(testString)){

return true;

}else{

return false;

}