Lightning Web Component - do I need to track changes for every single input field in a form
Since lwc is one-way data binding so if I need to get the current value of the input field I turned out to use event.target.value in the onchange event.
However, if we need to have a form of input fields and only need to collect all of the data at the form submission time, do I still need to add onchange event on every one of the input field at all? Or can I simply collect the information at the submission time?
lightning-web-components
asked 22 hours ago
Lance ShiLance Shi
7,53333077
add a comment |
Since lwc is one-way data binding so if I need to get the current value of the input field I turned out to use event.target.value in the onchange event.
However, if we need to have a form of input fields and only need to collect all of the data at the form submission time, do I still need to add onchange event on every one of the input field at all? Or can I simply collect the information at the submission time?
lightning-web-components
asked 22 hours ago
Lance ShiLance Shi
7,53333077
add a comment |
Since lwc is one-way data binding so if I need to get the current value of the input field I turned out to use event.target.value in the onchange event.
However, if we need to have a form of input fields and only need to collect all of the data at the form submission time, do I still need to add onchange event on every one of the input field at all? Or can I simply collect the information at the submission time?
lightning-web-components
asked 22 hours ago
Lance ShiLance Shi
7,53333077
Since lwc is one-way data binding so if I need to get the current value of the input field I turned out to use event.target.value in the onchange event.
However, if we need to have a form of input fields and only need to collect all of the data at the form submission time, do I still need to add onchange event on every one of the input field at all? Or can I simply collect the information at the submission time?
lightning-web-components
lightning-web-components
asked 22 hours ago
Lance ShiLance Shi
7,53333077
asked 22 hours ago
Lance ShiLance Shi
7,53333077
asked 22 hours ago
Lance ShiLance Shi
7,53333077
asked 22 hours ago
Lance ShiLance Shi
7,53333077
asked 22 hours ago
Lance ShiLance Shi
7,53333077
7,53333077
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
I would simply collect all the information on form submission using query selector.
this.template.querySelector('classname'); //use query selector
Note that @track should not be used extensively . It makes less sense to use this decorator if we are not rendering something on the UI .
If there is no client side validations involved on page, there is no need to use change handler on every input .
answered 22 hours ago
Mohith ShrivastavaMohith Shrivastava
61.6k7105147
So it is pretty much using the traditional jQuery style to get the values by either class or id, is that correct?
– Lance Shi
21 hours ago
By Id does not work there but by class .Yes almost jQuery style will be ideal .
– Mohith Shrivastava
20 hours ago
add a comment |
In my opinion, this is more of how you want to implement and most importantly how would you want to interact with the Users filling in the form. Sometimes one over other is just what you need.
do I still need to add onchange event on every one of the input field at all?
Use this approach if you really want to alert the user about any error in the field right away instead of waiting for end.
Or can I simply collect the information at the submission time?
Use this approach if you want to defer the validation until the submission.
answered 22 hours ago
Jayant DasJayant Das
17.2k21330
add a comment |
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2 Answers
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active
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2 Answers
2
active
oldest
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active
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votes
I would simply collect all the information on form submission using query selector.
this.template.querySelector('classname'); //use query selector
Note that @track should not be used extensively . It makes less sense to use this decorator if we are not rendering something on the UI .
If there is no client side validations involved on page, there is no need to use change handler on every input .
answered 22 hours ago
Mohith ShrivastavaMohith Shrivastava
61.6k7105147
So it is pretty much using the traditional jQuery style to get the values by either class or id, is that correct?
– Lance Shi
21 hours ago
By Id does not work there but by class .Yes almost jQuery style will be ideal .
– Mohith Shrivastava
20 hours ago
add a comment |
I would simply collect all the information on form submission using query selector.
this.template.querySelector('classname'); //use query selector
Note that @track should not be used extensively . It makes less sense to use this decorator if we are not rendering something on the UI .
If there is no client side validations involved on page, there is no need to use change handler on every input .
answered 22 hours ago
Mohith ShrivastavaMohith Shrivastava
61.6k7105147
So it is pretty much using the traditional jQuery style to get the values by either class or id, is that correct?
– Lance Shi
21 hours ago
By Id does not work there but by class .Yes almost jQuery style will be ideal .
– Mohith Shrivastava
20 hours ago
add a comment |
I would simply collect all the information on form submission using query selector.
this.template.querySelector('classname'); //use query selector
Note that @track should not be used extensively . It makes less sense to use this decorator if we are not rendering something on the UI .
If there is no client side validations involved on page, there is no need to use change handler on every input .
answered 22 hours ago
Mohith ShrivastavaMohith Shrivastava
61.6k7105147
I would simply collect all the information on form submission using query selector.
this.template.querySelector('classname'); //use query selector
Note that @track should not be used extensively . It makes less sense to use this decorator if we are not rendering something on the UI .
If there is no client side validations involved on page, there is no need to use change handler on every input .
answered 22 hours ago
Mohith ShrivastavaMohith Shrivastava
61.6k7105147
edited 21 hours ago
answered 22 hours ago
Mohith ShrivastavaMohith Shrivastava
61.6k7105147
answered 22 hours ago
Mohith ShrivastavaMohith Shrivastava
61.6k7105147
answered 22 hours ago
Mohith ShrivastavaMohith Shrivastava
61.6k7105147
61.6k7105147
So it is pretty much using the traditional jQuery style to get the values by either class or id, is that correct?
– Lance Shi
21 hours ago
By Id does not work there but by class .Yes almost jQuery style will be ideal .
– Mohith Shrivastava
20 hours ago
add a comment |
So it is pretty much using the traditional jQuery style to get the values by either class or id, is that correct?
– Lance Shi
21 hours ago
By Id does not work there but by class .Yes almost jQuery style will be ideal .
– Mohith Shrivastava
20 hours ago
So it is pretty much using the traditional jQuery style to get the values by either class or id, is that correct?
– Lance Shi
21 hours ago
So it is pretty much using the traditional jQuery style to get the values by either class or id, is that correct?
– Lance Shi
21 hours ago
By Id does not work there but by class .Yes almost jQuery style will be ideal .
– Mohith Shrivastava
20 hours ago
By Id does not work there but by class .Yes almost jQuery style will be ideal .
– Mohith Shrivastava
20 hours ago
add a comment |
In my opinion, this is more of how you want to implement and most importantly how would you want to interact with the Users filling in the form. Sometimes one over other is just what you need.
do I still need to add onchange event on every one of the input field at all?
Use this approach if you really want to alert the user about any error in the field right away instead of waiting for end.
Or can I simply collect the information at the submission time?
Use this approach if you want to defer the validation until the submission.
answered 22 hours ago
Jayant DasJayant Das
17.2k21330
add a comment |
In my opinion, this is more of how you want to implement and most importantly how would you want to interact with the Users filling in the form. Sometimes one over other is just what you need.
do I still need to add onchange event on every one of the input field at all?
Use this approach if you really want to alert the user about any error in the field right away instead of waiting for end.
Or can I simply collect the information at the submission time?
Use this approach if you want to defer the validation until the submission.
answered 22 hours ago
Jayant DasJayant Das
17.2k21330
add a comment |
In my opinion, this is more of how you want to implement and most importantly how would you want to interact with the Users filling in the form. Sometimes one over other is just what you need.
do I still need to add onchange event on every one of the input field at all?
Use this approach if you really want to alert the user about any error in the field right away instead of waiting for end.
Or can I simply collect the information at the submission time?
Use this approach if you want to defer the validation until the submission.
answered 22 hours ago
Jayant DasJayant Das
17.2k21330
In my opinion, this is more of how you want to implement and most importantly how would you want to interact with the Users filling in the form. Sometimes one over other is just what you need.
do I still need to add onchange event on every one of the input field at all?
Use this approach if you really want to alert the user about any error in the field right away instead of waiting for end.
Or can I simply collect the information at the submission time?
Use this approach if you want to defer the validation until the submission.
answered 22 hours ago
Jayant DasJayant Das
17.2k21330
answered 22 hours ago
Jayant DasJayant Das
17.2k21330
answered 22 hours ago
Jayant DasJayant Das
17.2k21330
answered 22 hours ago
Jayant DasJayant Das
17.2k21330
17.2k21330
add a comment |
add a comment |
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