getify
/ gist:3667624
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June 25, 2022 16:26
escape all (not-already-escaped) double-quote chars in a string
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| // NOTE: only escapes a " if it's not already escaped | |
| function escapeDoubleQuotes(str) { | |
| return str.replace(/\\([\s\S])|(")/g,"\\$1$2"); // thanks @slevithan! | |
| } | |
| escapeDoubleQuotes(`ab`); // ab => ab (nothing escaped) | |
| escapeDoubleQuotes(`a"b`); // a"b => a\"b | |
| escapeDoubleQuotes(`a\\"b`); // a\"b => a\"b (nothing escaped) | |
| escapeDoubleQuotes(`a\\\\"b`); // a\\"b => a\\\"b | |
| escapeDoubleQuotes(`a\\\\\\"b`); // a\\\"b => a\\\"b (nothing escaped) |