Escaping Strings in JavaScript

Question

Does JavaScript have a built-in function like PHP s addslashes  or addcslashes  function to add backslashes to characters that need escaping in a string   For example  this      This is a demo string with    single-quotes  and  double-quotes        would become      This is a demo string with     single-quotes   and     double-quotes

User · Answer

Use encodeURI    https   developer mozilla org en-US docs Web JavaScript Reference Global Objects encodeURI  Escapes pretty much all problematic characters in strings for proper JSON encoding and transit for use in web applications  It s not a perfect validation solution but it catches the low-hanging fruit

User · Answer

A variation of the function provided by Paolo Bergantino that works directly on String   String prototype addSlashes   function            no need to do  str     anymore because  this  can only be a string    return this replace         g       amp    replace   u0000 g     0         By adding the code above in your library you will be able to do   var test    hello single   double    and slash    yippie   alert test addSlashes         EDIT   Following suggestions in the comments  whoever is concerned about conflicts amongst JavaScript libraries can add the following code    if  String prototype addSlashes       String prototype addSlashes   function         else    alert  Warning  String addSlashes has already been declared elsewhere

User · Answer

You can also try this for the double quotes   JSON stringify sDemoString  slice 1  -1   JSON stringify  my string with  quotes    slice 1  -1

User · Answer

http   locutus io php strings addslashes   function addslashes  str         return  str       replace         g       amp    replace   u0000 g     0

User · Answer

You can also use this  x000D   x000D  let str    hello single   double    and slash    yippie    let escapeStr   escape str   document write   lt b gt str    lt  b gt   str   document write   lt br  gt  lt b gt escapeStr    lt  b gt   escapeStr   document write   lt br  gt  lt b gt unEscapeStr    lt  b gt    unescape escapeStr    x000D   x000D   x000D

[javascript] Escaping Strings in JavaScript

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