javascript - HTML5 localStorage replace data to already existing key - Stack Overflow

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I have the following localStorage key:

localStorage.setItem(1, "<div id='MyId'>value 1</div><div id='NewId'>other value</div>");

Is it possible to replace, change only the second id, make the:

<div id='MyId'>value 1</div><div id='NewId'>other value</div>

turn into

<div id='MyId'>value 1</div><div id='NewId'>replaced value</div>

I do not want to delete this key and create a new one, just replace a part of it. Thank you.

I have the following localStorage key:

localStorage.setItem(1, "<div id='MyId'>value 1</div><div id='NewId'>other value</div>");

Is it possible to replace, change only the second id, make the:

<div id='MyId'>value 1</div><div id='NewId'>other value</div>

turn into

<div id='MyId'>value 1</div><div id='NewId'>replaced value</div>

I do not want to delete this key and create a new one, just replace a part of it. Thank you.

• javascript
• html
• local-storage

Share Improve this question Follow edited Sep 20, 2010 at 11:12 Alex Gyoshev 12k44 gold badges4747 silver badges7676 bronze badges asked Sep 20, 2010 at 11:03 MirceaMircea 11.6k2626 gold badges6565 silver badges9898 bronze badges

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1 Answer 1

Sorted by: Reset to default 45

Taken from Dive into HTML5:

Calling setItem() with a named key that already exists will silently overwrite the previous value.

So read the value with getItem() [if needed], do your replace, set the new value with setItem().

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