javascript 校正某個數組中的所有元素是否相同

/** compare elements **/<br />function _compare_element(a){<br /> var temp = a[0];<br /> this.flag = false;<br /> this._verify_ele = function(){<br /> for(var c = 0 ; c < a.length; c ++){<br /> if( temp == a[parseInt(c)]) {<br /> this.flag = true;<br /> continue;<br />}<br /> else{<br /> this.flag = false;<br /> break;<br />}</p><p>}<br /> return this.flag;<br /> };<br /> return this._verify_ele;<br />}<br />/** test fn **/<br />function aa(){<br />var a1=[2,2,2,2,2,2];<br />var fn = new _compare_element(a1);<br />if(fn()){<br />document.write("elements of array are the same...");<br />return;<br />}<br />document.write("elements of array are not the same...");<br />}

 

 

output ： elements of array are the same...