I can't return value form my JSON function (Javascript)
up vote
0
down vote
favorite
This is my Javascript code.
<script>
var result2;
$(document).ready(function () {
$("#driver").click(function (event) {
$.getJSON('data.json',
function(jd, index) {
var result = jd.DevEUI_uplink.FCntUp;
result2 = result;
});
});
});
alert(result2)
</script>
But it return undefined.
please help.
javascript json ajax
asked Nov 11 at 11:44
WITTAWAT RIENRUNGROJ
23
add a comment |
up vote
0
down vote
favorite
This is my Javascript code.
<script>
var result2;
$(document).ready(function () {
$("#driver").click(function (event) {
$.getJSON('data.json',
function(jd, index) {
var result = jd.DevEUI_uplink.FCntUp;
result2 = result;
});
});
});
alert(result2)
</script>
But it return undefined.
please help.
javascript json ajax
asked Nov 11 at 11:44
WITTAWAT RIENRUNGROJ
23
2
Possible duplicate of How do I return the response from an asynchronous call?
– str
Nov 11 at 11:47
You are alerting before the click or the ajax request even occur
– charlietfl
Nov 11 at 11:47
as @cherlietfl mentionned, why not put alert inside the callback. Javascript probably reaches youralertbefore the callback is executed.
– zakaria amine
Nov 11 at 11:52
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
This is my Javascript code.
<script>
var result2;
$(document).ready(function () {
$("#driver").click(function (event) {
$.getJSON('data.json',
function(jd, index) {
var result = jd.DevEUI_uplink.FCntUp;
result2 = result;
});
});
});
alert(result2)
</script>
But it return undefined.
please help.
javascript json ajax
asked Nov 11 at 11:44
WITTAWAT RIENRUNGROJ
23
This is my Javascript code.
<script>
var result2;
$(document).ready(function () {
$("#driver").click(function (event) {
$.getJSON('data.json',
function(jd, index) {
var result = jd.DevEUI_uplink.FCntUp;
result2 = result;
});
});
});
alert(result2)
</script>
But it return undefined.
please help.
javascript json ajax
javascript json ajax
asked Nov 11 at 11:44
WITTAWAT RIENRUNGROJ
23
asked Nov 11 at 11:44
WITTAWAT RIENRUNGROJ
23
asked Nov 11 at 11:44
WITTAWAT RIENRUNGROJ
23
asked Nov 11 at 11:44
WITTAWAT RIENRUNGROJ
23
asked Nov 11 at 11:44
WITTAWAT RIENRUNGROJ
23
23
2
Possible duplicate of How do I return the response from an asynchronous call?
– str
Nov 11 at 11:47
You are alerting before the click or the ajax request even occur
– charlietfl
Nov 11 at 11:47
as @cherlietfl mentionned, why not put alert inside the callback. Javascript probably reaches youralertbefore the callback is executed.
– zakaria amine
Nov 11 at 11:52
add a comment |
2
Possible duplicate of How do I return the response from an asynchronous call?
– str
Nov 11 at 11:47
You are alerting before the click or the ajax request even occur
– charlietfl
Nov 11 at 11:47
as @cherlietfl mentionned, why not put alert inside the callback. Javascript probably reaches youralertbefore the callback is executed.
– zakaria amine
Nov 11 at 11:52
2
2
Possible duplicate of How do I return the response from an asynchronous call?
– str
Nov 11 at 11:47
Possible duplicate of How do I return the response from an asynchronous call?
– str
Nov 11 at 11:47
You are alerting before the click or the ajax request even occur
– charlietfl
Nov 11 at 11:47
You are alerting before the click or the ajax request even occur
– charlietfl
Nov 11 at 11:47
as @cherlietfl mentionned, why not put alert inside the callback. Javascript probably reaches your
alert before the callback is executed.– zakaria amine
Nov 11 at 11:52
as @cherlietfl mentionned, why not put alert inside the callback. Javascript probably reaches your
alert before the callback is executed.– zakaria amine
Nov 11 at 11:52
add a comment |
active
oldest
votes
active
oldest
votes
active
oldest
votes
active
oldest
votes
active
oldest
votes
draft saved
draft discarded
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53248412%2fi-cant-return-value-form-my-json-function-javascript%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
2
Possible duplicate of How do I return the response from an asynchronous call?
– str
Nov 11 at 11:47
You are alerting before the click or the ajax request even occur
– charlietfl
Nov 11 at 11:47
as @cherlietfl mentionned, why not put alert inside the callback. Javascript probably reaches your
alertbefore the callback is executed.– zakaria amine
Nov 11 at 11:52