如何从JS字符串中删除双引号？

Question

my string is coming with duplicate " start and the end of string, trying to remove duplicate its printing same value.

trying to remove double quotes its not working with this code

 var str = "" var item = str.includes('test'); item.replace(/\"/g, "")); console.log(item);

Answer 1

Try this.

var someStr = 'It is "nice" to meet you';
console.log(someStr.replace(/["]+/g, ''));

Answer 2

Firstly, string.replace does not modify string , it returns the modified value, which you must then assign to a variable.

Secondly, string.includes returns a boolean , and there is no boolean.replace .

Try this:

 let str = "\"this is test string\""; console.log(str); str = str.replace(/\"/g, ""); console.log(str);

Answer 3

This will only remove it if the string both starts and ends with a double quotes, and will keep double quotes if they are inside the string.

However, it is easy to fool it with a string like '"this" will "fail"' .

 function process(input) { return /^".*"$/.test(input)? input.slice(1, input.length-1): input; }; [ '"This is a test"', 'This is a test', 'This is a "test"', '"this" will "fail"' ].forEach( input => console.log(process(input)));