JSON Key-Value Pair Regex Pattern

Live Regex Tester

Pattern Breakdown

Code Examples

const regex = /"([^"]+)"\s*:\s*("([^"]*)"|\d+|true|false|null)/g;
const test = ""name": "John"";
console.log(regex.test(test)); // true

// Extract matches
const matches = test.match(regex);
console.log(matches);

import re

pattern = r'"([^"]+)"\s*:\s*("([^"]*)"|\d+|true|false|null)'
test = ""name": "John""
match = re.findall(pattern, test)
print(match)  # Found!

package main

import (
    "fmt"
    "regexp"
)

func main() {
    re := regexp.MustCompile(`"([^"]+)"\s*:\s*("([^"]*)"|\d+|true|false|null)`)
    fmt.Println(re.MatchString(""name": "John"")) // true
}

Common Use Cases

Match Examples

About the JSON Key-Value Pair Regex

Matches JSON key-value pairs with string, number, boolean, or null values. Useful for lightweight JSON processing.

Regular expressions (regex) are powerful pattern matching tools used across virtually all programming languages. The json key-value pair pattern is classified as intermediate difficulty in the code & programming category. This pattern is specifically designed for JSON.

When using this regex, always consider edge cases and test thoroughly with real-world data. Use the interactive tester above to validate the pattern against your specific inputs before deploying to production.

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