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How can I use a variable of one in another in javascript?
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There are two ways to pass variables between web pages. The first method is to use sessionStorage, or localStorage. The second method is to use a query string with the URL.
In JavaScript, variables can be accessed from another file using the <script> tags or the import or export statement. The script tag is mainly used when we want to access variable of a JavaScript file in an HTML file.
The variable number is declared globally and may be accessed from other file when including its declaration with the “ extern ” prefix. However, the variable coefficient is only accessible from the file in which it is declared and only from that point on (it is not visible in function main .
If the two script tags are on the same page, any variable declared outside of the scope of a function is global to the page.
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