Learn Javascript - how to access html element via css class using javascript - javascript training

Pubblicato il: 18 settembre 2015
sul canale di: Programming Tutorial

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Javascript tutorial for beginners
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In this tutorial we will learn how to access html element using class name via javascript.
Accessing html element using class name is similar to access element using name or tag name.
we use document dot get element by class name function for access it which returns array
So, no matter there is 1 element with that class or more.
we use it like an array.
Because we already know array index start from zero in javascript.
In this video tutorial we will create two css class, class - rahul & class - second
And four divs, Three divs had been assigned same css class and 1 div have another css class
When we use document dot get element by class name function for css class rahul, its return array have 3 element or length becuase this class isused by 3 divs.
For access first element us zeroth position & for access second element we use 1st position.
But when we use class second it will also return array but 1 element array, Because this class is used by only 1 div.
Returned array is stored in array
So we can get or set any divs property we just have to change array index peoperty

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