File to achieve a fixed position with nodejs Inserts

 

Write data to the fixed line in the file:

nodejs when the need to use the fs module and the module path

The method used fs module  readFileSync  &  writeFileSync  ;  readFileSync  read file content,  writeFileSync  is a write to a file;

Realization of ideas:

1: reading the contents of the file and read the contents of the array is cut by a newline

2: (Inserts fixed to the table with the splice) the insertion of the contents of the array

3: The sub array into a string (using the method join, the join method is newline parameters), then the converted character string rewriting the original document

var FS = the require ( 'FS' );
 var path = the require ( 'path' ); 

// write data to the fixed-line 
function writeFileToLine (value) { 
    the let the basePath = path.resolve ( './' ); 
    the let Data fs.readFileSync = (the basePath + '/ template.appcache', 'UTF8') Split (/ \ R & lt \ n-| \ n-| \ R & lt / GM);. // the first argument is the file name of readFileSync 
    data.splice ( data.length -. 5, 0 , ... value); 
    fs.writeFileSync ( './manifest.appcache', data.join ( '\ R & lt \ n-' )) 
}