Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to match strings that aren't entirely digits in JavaScript?
Let’s say the following is our complicated string −
var values = 'studentId:"100001",studentName:"John Smith",isTopper:true,uniqueId:10001J-10001,marks:78,newId:"4678"';
You can use regular expression to match strings. Following is the code −
Example
var regularExpression = /(?<=:)(?!(?:null|false|true|\d+),)[\w-]+(?=,)/g;
var values = 'studentId:"100001",studentName:"John Smith",isTopper:true,uniqueId:10001J-10001,marks:78,newId:"4678"';
console.log("Original Value="+values);
console.log("The string that are not entirely digits=");
console.log(values.match(regularExpression));To run the above program, you need to use the following command −
node fileName.js.
Here, my file name is demo187.js.
Output
This will produce the following output −
PS C:\Users\Amit\javascript-code> node demo187.js Original Value=studentId:"100001",studentName:"John Smith",isTopper:true,uniqueId:10001J-10001,marks:78,newId:"4678" The string that are not entirely digits= [ '10001J-10001' ]
Updated on: 14-Sep-2020
47 Views
Advertisements