Let's say I have a Method written in JavaScript in GWT(JSNI) which accepts the wrapper data type Integer and I need to convert it into a Primitive Data type inside JS.
public static native void nativeMethod(Integer index)/*-{
// What is the best way to check for null values?
// How can I convert it into a primitive type?
}-*/;
Any suggestions?
private static void executeNativeMethod(Integer value)/*-{
if (value == null) {
// value is null
} else {
var intValue = <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="670a070d11054b250f0401064b09040708014720070804030417">[email protected]</a>::intValue()();
// intValue now holds the integer value of 'value'
}
}-*/;
function invokeNativeMethod(index) {
var converted;
if (index !== null) {
converted = Number(index);
} else {
converted = null;
}
}
Success! The function checks for null values and converts to a different type if needed.
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