I'm trying to do this PHP equivalent in javascript.
How can I do the same loop I did with PHP in javascript?
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"a json" … sorry, I laughed to myselfvol7ron– vol7ron2018-05-12 15:12:42 +00:00Commented May 12, 2018 at 15:12
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This question has been stripped of all its original context. In its current state it is not suitable anymore as SO posting.YoYo– YoYo2020-02-22 23:00:13 +00:00Commented Feb 22, 2020 at 23:00
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3 Answers
You can simply loop through json in javascript like:
for(key in json){
console.log(key,json[key]);
}
Comments
You got the basic syntax of looping wrong:
for (json.messages in object){
alert(object.message);
}
Assuming that you want to loop the messages in json.messages, and using a name other than object as that might be a system built-in, you would actually write it as follows:
for (alertMessage in json.messages){
alert(alertMessage);
}
See also https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration
you got basically the position of variable and array wrong: variable comes left side of the in.
Comments
To loop through JSON in JavaScript, use a for ... in ... loop like this:
var json = JSON.parse('{ "name":"John", "age":30, "city":"New York"}');
for (key in json) {
console.log(key + ": " + json[key]);
}