Cannot find function replace

[lordzoster]

Hallo
I'm performing a replace on the content of a node, in this way:

var str = node.properties.content;
var result = str.replace("apple", "orange");
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but I'm getting an Exception "org.mozilla.javascript.EcmaError - TypeError: Cannot find function replace"

Could anybody help me please?
Thanks in advance

[mitpatoliya]

For getting content you need to use this
var str- node.properties.content.content;

[kaynezhang]

Please use var str = node.properties.content.content; instead of var str = node.properties.content;

like following

var str = node.properties.content.content;
var result = str.replace("apple", "orange");
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Sorry already answered by mitpatoliya ,I didn't see it