javascript - 我如何用纯 JavaScript 编写这个 JQuery 函数？

Question

你能帮我用最有效的方式用纯 JavaScript 编写这个函数吗？

//Selects all elements matched by <input> that have a name value 
//exactly equal to myname.
$("input[@name=myname]") 

Answer 1

var els = document.getElementsByTagName("input"),
    arr = [];

for (var i = 0, l = els.length; i < l; i++) {
    if (els.name === "myname") {
        arr.push(els);
    }
}

console.log(arr);

或者对于现代浏览器:

var arr = document.querySelectorAll("input[name='myname']");
console.log(arr);