custom selectors
CSS Selectors
not first child
/* not first child */
:not(:first-child)
/* starting from 2nd child */
:nth-child(n+2)
/* next sibling */
A + A
🗣️ :not(:first-child) selector (StackOverflow)
📘 :not()
JS Selector Functions
// $ ⭐️
function $(selector, parent = document){
return parent.querySelector(selector);
}
// $all ⭐️
function $all(selector, parent = document){
return parent.querySelectorAll(selector);
}
// ⭐️ element.$('div')
// ⭐️ 注意:prototype method 必須放前面,不能擺最後面❗️
Element.prototype.$ = function(selector){
return this.querySelector(selector);
}
// test run
console.log($('div')); // HTMLDivElement
console.log($('div').$('span')); // HTMLSpanElement
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