I am receiving the JSON object as a list of objects:
result=[{"key1":"value1","key2":"value2"}]
I am trying to retrieve the values from this list in Node.js. I used JSON.stringify(result) but failed. I have been trying to iterate the list using for(var key in result) with no luck, as it prints each item as a key.
Is anyone facing a similar issue or has been through this? Please point me in the right direction.
If your result is a string then:
var obj = JSON.parse(result);
var keys = Object.keys(obj);
for (var i = 0; i < keys.length; i++) {
console.log(obj[keys[i]]);
}
Lookslike you are pointing to wrong object. Either do like
var result = [{"key1":"value1","key2":"value2"}];
for(var key in result[0]){ alert(key);}or
var keys = Object.keys([{"key1":"value1","key2":"value2"}][0]);
alert(keys);Okay, assuming that result here is a string, the first thing you need to do is to convert (deserialize) it to a JavaScript object. A great way of doing this would be:
array = JSON.parse(result)
Next you loop through each item in the array, and for each item, you can loop through the keys like so:
for(var idx in array) {
var item = array[idx];
for(var key in item) {
var value = item[key];
}
}
Wouldn't this just be:
let obj = JSON.parse(result);
let arrValues = Object.values(obj);
which would give you an array of just the values to iterate over.
A little different approach:
let result=[{"key1":"value1","key2":"value2"}]
for(let i of result){
console.log("i is: ",i)
console.log("key is: ",Object.keys(i));
console.log("value is: ",Object.keys(i).map(key => i[key])) // Object.values can be used as well in newer versions.
}
try this code:
For result=[{"key1":"value1","key2":"value2"}]
Below will print the values for Individual Keys:
console.log(result[0].key1)
console.log(result[0].key2)
This is for JsonObject (not JsonArray per se). p is your jsonobject the key pairs are key and p[key]
var p = {
"p1": "value1",
"p2": "value2",
"p3": "value3"
};
for (var key in p) {
if (p.hasOwnProperty(key)) {
console.log(key + " -> " + p[key]);
}
}
