Question

3

Finding a substring and inserting another string

rated 0 times [ 5] [ 2] / answers: 1 / hits: 20540 / 13 Years ago, tue, may 3, 2011, 12:00:00

Suppose I have string variable such as:

var a = xxxxxxxxhelloxxxxxxxx;

or:

var a = xxxxhelloxxxx;

I want to insert world after hello.

I can't use substr() because the position is not known ahead of time. How can I do this in JavaScript or jQuery?

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

jeffn

Add To Favorites

Follow

Total Points: 559

Total Questions: 81

Total Answers: 103

Location: Spain

Member since Thu, Dec 23, 2021

3 Years ago

answered 13 Years ago nathalieg · Accepted Answer

var a = xxxxhelloxxxxhelloxxxx;

a = a.replace(/hello/g,hello world); // if you want all the hello's in the string to be replaced

document.getElementById(regex).textContent = a;



a = xxxxhelloxxxxhelloxxxx;

a = a.replace(hello,hello world); // if you want only the first occurrence of hello to be replaced

document.getElementById(string).textContent = a;

<p>With regex: <strong id=regex></strong></p>

<p>With string: <strong id=string></strong></p>