JavaScript Advanced Practice and simple example analysis _javascript skills

When the user clicks the "stats" button, pops the most frequently occurring character in the text box and displays the number of occurrences in the window.

Click the Statistics button when the effect is as shown in the picture:

Implementation code:

<! DOCTYPE html>  

JS Object attributes can be added later features, object properties of the traversal of JS objects such as the integrated use.

JS-related knowledge can refer to JavaScript object related Operations

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