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Comparative examples of js and jq

小云云
Release: 2018-03-26 16:26:11
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This article mainly shares with you the comparative examples of js and jq, mainly in the form of code, hoping to help everyone.

1. Traverse / event

//  js
var liList = document.querySelector('ul').querySelectorAll('li');
for(var i = 0; i < liList.length; i++){
    liList[i].onclick = function () {

    }
}
// jq
$(&#39;.optionUl li&#39;).each(function () {
    $(this).click(function () {
        
    });
})
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2. Get custom properties

// js
var id = document.querySelector(&#39;.demo&#39;).dataset.id;

// jq
var id = $(&#39;.demo&#39;).data(&#39;id&#39;);
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3. Set css properties

//jsdocument.querySelector(&#39;.demo&#39;).style.color = "red";//jq$(&#39;.demo&#39;).css("display")
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4. Get src

//jq var it = $(&#39;.captcha img&#39;).attr("src"); var it = $(&#39;.captcha img&#39;)[0].src;
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5. Change className

//jsdocument.querySelector(&#39;.demo&#39;).className = "list";//jq$(&#39;.demo&#39;).css("display")
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