how to find and replace all elements from a string in javascript code example

Example 1: js replace all substrings

/// replace "abc" with "" (blank string)
str.replace(/abc/g, '');

Example 2: javascript replace all with variable

/**
*A better method for replacing strings is as follows:
**/
function replaceString(oldString, newString, fullString) {
  return fullS.split(oldS).join(newS)
}
replaceString('World', 'Web', 'Brave New World')//'Brave New Web'
replaceString('World', 'Web', 'World New World')//'Web New Web'

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Javascript Example

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