How to replace all " " siblings from JSON string?

{
  "Cat": "laps milk",
  "Dog": "Woofs at Postman",
  "Bird": "Jumps over the river",
  "I": "Want to learn Regexp"
}

And btw, advice me please some good article or book from where I could finally learn Regexp :(

How to replace all " " siblings from JSON string?

{
  "Cat": "laps milk",
  "Dog": "Woofs at Postman",
  "Bird": "Jumps over the river",
  "I": "Want to learn Regexp"
}

And btw, advice me please some good article or book from where I could finally learn Regexp :(

• javascript
• regex
• json

4 Answers 4

If you're parsing the JSON string, you can also use the reviver parameter of JSON.parse(string, [reviver]):

var jsonStr = '{"Cat":"laps milk","Dog":"Woofs at Postman","Bird":"Jumps over the river","I":"Want to learn Regexp"}';
var result = JSON.parse(jsonStr, function (key, value) {
    return value.replace(/ /g, " ");
});

Likewise, the stringify method allows a replacer function which will replace any values when converting to a JSON string:

var obj = {"Cat":"laps milk","Dog":"Woofs at Postman","Bird":"Jumps over the river","I":"Want to learn Regexp"};
var result = JSON.stringify(obj, function (key, value) {
    return value.replace(/ /g, " ");
});

Of course, this is assuming you're using json2.js or a browser with the correct ECMAScript 5th Edition implementation of the JSON object.

var json = { "Cat"  : "laps_ milk",
             "Dog"  : "Woofs_ at_ Postman",
             "Bird" : "Jumps_ over_ the_ river",
             "I"    : "Want_ to_ learn_ Regexp" };
for (var prop in json) {
    json[prop] = json[prop].replace(/_/gi, '');
}

Regular Expressions is a good place to learn regexes.

Try this:

var obj = {"Cat":"laps milk","Dog":"Woofs at Postman","Bird":"Jumps over the river","I":"Want to learn Regexp"};
for(var key in obj) {
    obj[key] = obj[key].replace(' ', '');
}

Also, the place that has helped me most in learning regular expressions:

• http://www.regular-expressions.info/reference.html

In Mootools: console.log(JSON.encode(mystring).replace(/ /gi, ' '));