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One of the most simple question, the browser how to monitor changes in js?

Time：04-21

HTML elements can be modified in the browser to test directly,
Then the js, how to think? Such as I am now a page, click the "add" button, the number from 1 to 2, then I the change of the 2, I want to see in the browser?

I have a place, for example, is a, another b, then I have a position & lt; Div id="nr" & gt;

I clicked on joining together, then the nr elements becomes ab, so I want to be in the browser where can see that it is carried out?

CodePudding user response:

I now every click the add button, the number will increase a, but I want to bring up the Numbers, how to check this function?

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