RegExp 如何在此示例中替换双引号上的单引号

Question

 let text = "'I'm the cook,' he said, 'it's my job.'"; // Change this call. function replaceQuotes(string) { const actionReplace = string.replace(/(^')|('$)|('(?=.*)(?=\s))|(?: '(?=.*))/g, "#"); return actionReplace } console.log(replaceQuotes(text)); //expected result → "I'm the cook," he said, "it's my job." //actual result → "zI'm the cook,z he said,zit's my job.z"

Answer 1

因为"字符\ ”放在它前面。

所以你可以把"#"改成"\""

或者你可以把"#"改成“ '"'

 let text = "'I'm the cook,' he said, 'it's my job.'"; function replaceQuotes (string){ const actionReplace = string.replace(/(^')|('$)|('(?=.*)(?=\s))/g, "\"").replace(/(?: '(?=.*))/g, " \""); return actionReplace } console.log(replaceQuotes(text))

Answer 2

在最后一个交替中，您有一个未被替换的空间。

只需在替换部分添加这个空间，为此，我已经删除了所有无用的组（这会减慢进程）并创建另一个包含要保留的空间的组。

 let text = "'I'm the cook,' he said, 'it's my job.'"; // Change this call. function replaceQuotes(string) { const actionReplace = string.replace(/^'|'$|'(?=\s)|( )'(?=.*)/g, '$1"'); return actionReplace } console.log(replaceQuotes(text)); //expected result → "I'm the cook," he said, "it's my job." //actual result → "zI'm the cook,z he said,zit's my job.z"