vs code command change all same expression code example

Example 1: visual studio find and replace

//Press Ctrl+F as a shortcut to find a string in the current file.
//Press Ctrl+H as a shortcut to find and replace a string in the current file.

Example 2: vscode search in folder

concatMap(rootTemplate =>
  this.templateEngine.getAllChildTemplates(rootTemplate).pipe(
    map(childTemplates => [rootTemplate, childTemplates])
  )
),
concatMap(([rootTemplate, childTemplates]) => 
  this.templateEngine.createTemplateToRender(childTemplates, rootTemplate)
)