How can i replace text inside variable with jquery or javascript [duplicate]

Question

Possible Duplicate:
Why does javascript replace only first instance when using replace?

I have this variable

var newRow = "<td><div> [[myvar]]</div> <div> [[myvar]]</div> </td> "

When i do this

newRow  = newRow.replace('[[myvar]]', '10');

Only first occurance gets replaced and not the second

See [this][1] answer. That is almost the same question. [1]: stackoverflow.com/questions/1967119/… — David
– David, Commented Oct 11, 2012 at 8:13

Denys Séguret · Accepted Answer · 2012-10-11 08:33:30Z

9

You might use a regular expression

newRow  = newRow.replace(/\[\[myvar\]\]/g, '10');

There is no other simple solution for multiple replacements. Note that :

regex are heavily optimised on all browsers, especially if using the /\[\[myvar\]\]/ notation
if your pattern is dynamic you may use new RegExp(somepattern, 'g') (but for better performances don't use this if you have a fixed pattern)

edited Oct 11, 2012 at 8:33

answered Oct 11, 2012 at 8:13

Denys Séguret

384k90 gold badges813 silver badges780 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Mirage Over a year ago

i don't understood , if i have exact match , why do i need to have regex. i mean function replace is same why regex works but not simple string

Alberto De Caro Over a year ago

In Javascript the replace function is actually based on regex. By default the replace hits only the first occurrance. The g flag set the global match option.

Mirage Over a year ago

thanks buddy. i don't know when i see regex , i heart starts pumping faster like i saw tiger in front of me

techfoobar · Accepted Answer · 2012-10-11 08:14:20Z

0

Use this:

newRow = newRow.replace(new RegExp('[[myvar]]', 'g'), '10');

answered Oct 11, 2012 at 8:14

techfoobar

66.8k14 gold badges117 silver badges138 bronze badges

Collectives™ on Stack Overflow

How can i replace text inside variable with jquery or javascript [duplicate]

2 Answers 2

3 Comments

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

3 Comments

Comments

Linked

Related