Dynamically Tally Child Elements by Classname in Vue
I have a page that allows a user to drag/drop images into pre-defined DIVs, then I tally up the total value of the images based on their class name. What I am trying to do is get vue to read the values from each outer div.answer
and get the class names of the child images.
My source code is:
<div
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint"
></div>
<script>
Vue.component('box-answers', {
props: ['level','hint'],
template: '<div class="droppable answer :id="level" :title="hint"></div>'
});
new Vue({
el: '#mainapp',
data: {
boxes: [
{ id: 1, level: 'baselevel-1', hint: 'x 1' },
{ id: 2, level: 'baselevel-2', hint: 'x 20' },
{ id: 3, level: 'baselevel-3', hint: 'x 400' },
{ id: 4, level: 'baselevel-4', hint: 'x 8,000' },
{ id: 5, level: 'baselevel-5', hint: 'x 160,000' }
]
}
</script>
This converts to the follow HTML (the nested DIVs and SPANs are user-possible entries by dragging):
<div id="baselevel-5" class="droppable answer" title="x 160,000">
<div><img src="images/line.gif" alt="Five" class="imgfive"></div>
<span><img src="images/dot.gif" alt="One" class="imgone"></span>
</div>
...
<div id="baselevel-1" class="droppable answer" title="x 1">
<span><img src="images/line.gif" alt="One" class="imgone"></span>
</div>
Currently, I have jQuery/JavaScript calculating the point values using the following:
$(function(j) {
var arAnswers = Array(1);
count = 0; //
j("div.answer").each(function( idx ) {
currentId = j(this).attr('id');
ones = 0;
fives = 0;
if ( j("#" + currentId).children().length > 0 ) {
ones = j("#" + currentId).children().find("img.imgone").length * 1;
fives = j("#" + currentId).children().find("img.imgfive").length * 5;
arAnswers[count] = ones + fives; //Tally box value
count++;
}
});
});
I would like Vue to perform similar iteration and addition to return total value of ones and fives found based on the image classname.
vue.js vuejs2
add a comment |
I have a page that allows a user to drag/drop images into pre-defined DIVs, then I tally up the total value of the images based on their class name. What I am trying to do is get vue to read the values from each outer div.answer
and get the class names of the child images.
My source code is:
<div
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint"
></div>
<script>
Vue.component('box-answers', {
props: ['level','hint'],
template: '<div class="droppable answer :id="level" :title="hint"></div>'
});
new Vue({
el: '#mainapp',
data: {
boxes: [
{ id: 1, level: 'baselevel-1', hint: 'x 1' },
{ id: 2, level: 'baselevel-2', hint: 'x 20' },
{ id: 3, level: 'baselevel-3', hint: 'x 400' },
{ id: 4, level: 'baselevel-4', hint: 'x 8,000' },
{ id: 5, level: 'baselevel-5', hint: 'x 160,000' }
]
}
</script>
This converts to the follow HTML (the nested DIVs and SPANs are user-possible entries by dragging):
<div id="baselevel-5" class="droppable answer" title="x 160,000">
<div><img src="images/line.gif" alt="Five" class="imgfive"></div>
<span><img src="images/dot.gif" alt="One" class="imgone"></span>
</div>
...
<div id="baselevel-1" class="droppable answer" title="x 1">
<span><img src="images/line.gif" alt="One" class="imgone"></span>
</div>
Currently, I have jQuery/JavaScript calculating the point values using the following:
$(function(j) {
var arAnswers = Array(1);
count = 0; //
j("div.answer").each(function( idx ) {
currentId = j(this).attr('id');
ones = 0;
fives = 0;
if ( j("#" + currentId).children().length > 0 ) {
ones = j("#" + currentId).children().find("img.imgone").length * 1;
fives = j("#" + currentId).children().find("img.imgfive").length * 5;
arAnswers[count] = ones + fives; //Tally box value
count++;
}
});
});
I would like Vue to perform similar iteration and addition to return total value of ones and fives found based on the image classname.
vue.js vuejs2
add a comment |
I have a page that allows a user to drag/drop images into pre-defined DIVs, then I tally up the total value of the images based on their class name. What I am trying to do is get vue to read the values from each outer div.answer
and get the class names of the child images.
My source code is:
<div
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint"
></div>
<script>
Vue.component('box-answers', {
props: ['level','hint'],
template: '<div class="droppable answer :id="level" :title="hint"></div>'
});
new Vue({
el: '#mainapp',
data: {
boxes: [
{ id: 1, level: 'baselevel-1', hint: 'x 1' },
{ id: 2, level: 'baselevel-2', hint: 'x 20' },
{ id: 3, level: 'baselevel-3', hint: 'x 400' },
{ id: 4, level: 'baselevel-4', hint: 'x 8,000' },
{ id: 5, level: 'baselevel-5', hint: 'x 160,000' }
]
}
</script>
This converts to the follow HTML (the nested DIVs and SPANs are user-possible entries by dragging):
<div id="baselevel-5" class="droppable answer" title="x 160,000">
<div><img src="images/line.gif" alt="Five" class="imgfive"></div>
<span><img src="images/dot.gif" alt="One" class="imgone"></span>
</div>
...
<div id="baselevel-1" class="droppable answer" title="x 1">
<span><img src="images/line.gif" alt="One" class="imgone"></span>
</div>
Currently, I have jQuery/JavaScript calculating the point values using the following:
$(function(j) {
var arAnswers = Array(1);
count = 0; //
j("div.answer").each(function( idx ) {
currentId = j(this).attr('id');
ones = 0;
fives = 0;
if ( j("#" + currentId).children().length > 0 ) {
ones = j("#" + currentId).children().find("img.imgone").length * 1;
fives = j("#" + currentId).children().find("img.imgfive").length * 5;
arAnswers[count] = ones + fives; //Tally box value
count++;
}
});
});
I would like Vue to perform similar iteration and addition to return total value of ones and fives found based on the image classname.
vue.js vuejs2
I have a page that allows a user to drag/drop images into pre-defined DIVs, then I tally up the total value of the images based on their class name. What I am trying to do is get vue to read the values from each outer div.answer
and get the class names of the child images.
My source code is:
<div
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint"
></div>
<script>
Vue.component('box-answers', {
props: ['level','hint'],
template: '<div class="droppable answer :id="level" :title="hint"></div>'
});
new Vue({
el: '#mainapp',
data: {
boxes: [
{ id: 1, level: 'baselevel-1', hint: 'x 1' },
{ id: 2, level: 'baselevel-2', hint: 'x 20' },
{ id: 3, level: 'baselevel-3', hint: 'x 400' },
{ id: 4, level: 'baselevel-4', hint: 'x 8,000' },
{ id: 5, level: 'baselevel-5', hint: 'x 160,000' }
]
}
</script>
This converts to the follow HTML (the nested DIVs and SPANs are user-possible entries by dragging):
<div id="baselevel-5" class="droppable answer" title="x 160,000">
<div><img src="images/line.gif" alt="Five" class="imgfive"></div>
<span><img src="images/dot.gif" alt="One" class="imgone"></span>
</div>
...
<div id="baselevel-1" class="droppable answer" title="x 1">
<span><img src="images/line.gif" alt="One" class="imgone"></span>
</div>
Currently, I have jQuery/JavaScript calculating the point values using the following:
$(function(j) {
var arAnswers = Array(1);
count = 0; //
j("div.answer").each(function( idx ) {
currentId = j(this).attr('id');
ones = 0;
fives = 0;
if ( j("#" + currentId).children().length > 0 ) {
ones = j("#" + currentId).children().find("img.imgone").length * 1;
fives = j("#" + currentId).children().find("img.imgfive").length * 5;
arAnswers[count] = ones + fives; //Tally box value
count++;
}
});
});
I would like Vue to perform similar iteration and addition to return total value of ones and fives found based on the image classname.
vue.js vuejs2
vue.js vuejs2
edited Nov 21 '18 at 20:38
marc_s
580k13011181266
580k13011181266
asked Nov 21 '18 at 2:50
Angry SpartanAngry Spartan
1,80963666
1,80963666
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Currently, you are approaching this problem as a pure-play DOM operation. If that is what you need then you can simply use $refs
:
<!-- NOTICE ref -->
<div ref="boxAnswers"
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint">
</div>
Inside your high-level component, you will have a function like:
function calculate() {
// NOTICE $refs
const arAnswers = this.$refs.boxAnswers.map((x) => {
// $el is the DOM element
const once = x.$el.querySelectorAll('img.imgone').length * 1;
const fives = x.$el.querySelectorAll('img.imgfive').length * 5;
return once + fives
});
return arAnswers;
}
But this is not the correct Vue way of doing things. You have to think in terms of events and data model (MVVM - don't touch DOM. DOM is just a representation of your data model). Since, you have a drag-n-drop based application, you have to listen for drag
, dragstart
, dragend
and other drag
events. For example:
<!-- NOTICE drop event -->
<div @drop="onDropEnd(box, $event)"
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint">
</div>
Your onDropEnd
event handler will look like:
function onDrop(box, $event) {
// box - on which box drop is happening
// $event.data - which image is being dropped
// Verify $event.data is actually the image you are intending
if ($event.data === 'some-type-image') {
// Do the counting manipulations here
// ... remaining code
}
}
This is not a complete code as I don't know other components. But it should help you with the required direction.
I'm still very new to Vue so while I understand why your first answer is not the real way to do it, I'll work with that one until I get a deeper understanding of the language. Using$refs
has opened my eyes to lots of potential!
– Angry Spartan
Nov 23 '18 at 13:55
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Currently, you are approaching this problem as a pure-play DOM operation. If that is what you need then you can simply use $refs
:
<!-- NOTICE ref -->
<div ref="boxAnswers"
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint">
</div>
Inside your high-level component, you will have a function like:
function calculate() {
// NOTICE $refs
const arAnswers = this.$refs.boxAnswers.map((x) => {
// $el is the DOM element
const once = x.$el.querySelectorAll('img.imgone').length * 1;
const fives = x.$el.querySelectorAll('img.imgfive').length * 5;
return once + fives
});
return arAnswers;
}
But this is not the correct Vue way of doing things. You have to think in terms of events and data model (MVVM - don't touch DOM. DOM is just a representation of your data model). Since, you have a drag-n-drop based application, you have to listen for drag
, dragstart
, dragend
and other drag
events. For example:
<!-- NOTICE drop event -->
<div @drop="onDropEnd(box, $event)"
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint">
</div>
Your onDropEnd
event handler will look like:
function onDrop(box, $event) {
// box - on which box drop is happening
// $event.data - which image is being dropped
// Verify $event.data is actually the image you are intending
if ($event.data === 'some-type-image') {
// Do the counting manipulations here
// ... remaining code
}
}
This is not a complete code as I don't know other components. But it should help you with the required direction.
I'm still very new to Vue so while I understand why your first answer is not the real way to do it, I'll work with that one until I get a deeper understanding of the language. Using$refs
has opened my eyes to lots of potential!
– Angry Spartan
Nov 23 '18 at 13:55
add a comment |
Currently, you are approaching this problem as a pure-play DOM operation. If that is what you need then you can simply use $refs
:
<!-- NOTICE ref -->
<div ref="boxAnswers"
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint">
</div>
Inside your high-level component, you will have a function like:
function calculate() {
// NOTICE $refs
const arAnswers = this.$refs.boxAnswers.map((x) => {
// $el is the DOM element
const once = x.$el.querySelectorAll('img.imgone').length * 1;
const fives = x.$el.querySelectorAll('img.imgfive').length * 5;
return once + fives
});
return arAnswers;
}
But this is not the correct Vue way of doing things. You have to think in terms of events and data model (MVVM - don't touch DOM. DOM is just a representation of your data model). Since, you have a drag-n-drop based application, you have to listen for drag
, dragstart
, dragend
and other drag
events. For example:
<!-- NOTICE drop event -->
<div @drop="onDropEnd(box, $event)"
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint">
</div>
Your onDropEnd
event handler will look like:
function onDrop(box, $event) {
// box - on which box drop is happening
// $event.data - which image is being dropped
// Verify $event.data is actually the image you are intending
if ($event.data === 'some-type-image') {
// Do the counting manipulations here
// ... remaining code
}
}
This is not a complete code as I don't know other components. But it should help you with the required direction.
I'm still very new to Vue so while I understand why your first answer is not the real way to do it, I'll work with that one until I get a deeper understanding of the language. Using$refs
has opened my eyes to lots of potential!
– Angry Spartan
Nov 23 '18 at 13:55
add a comment |
Currently, you are approaching this problem as a pure-play DOM operation. If that is what you need then you can simply use $refs
:
<!-- NOTICE ref -->
<div ref="boxAnswers"
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint">
</div>
Inside your high-level component, you will have a function like:
function calculate() {
// NOTICE $refs
const arAnswers = this.$refs.boxAnswers.map((x) => {
// $el is the DOM element
const once = x.$el.querySelectorAll('img.imgone').length * 1;
const fives = x.$el.querySelectorAll('img.imgfive').length * 5;
return once + fives
});
return arAnswers;
}
But this is not the correct Vue way of doing things. You have to think in terms of events and data model (MVVM - don't touch DOM. DOM is just a representation of your data model). Since, you have a drag-n-drop based application, you have to listen for drag
, dragstart
, dragend
and other drag
events. For example:
<!-- NOTICE drop event -->
<div @drop="onDropEnd(box, $event)"
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint">
</div>
Your onDropEnd
event handler will look like:
function onDrop(box, $event) {
// box - on which box drop is happening
// $event.data - which image is being dropped
// Verify $event.data is actually the image you are intending
if ($event.data === 'some-type-image') {
// Do the counting manipulations here
// ... remaining code
}
}
This is not a complete code as I don't know other components. But it should help you with the required direction.
Currently, you are approaching this problem as a pure-play DOM operation. If that is what you need then you can simply use $refs
:
<!-- NOTICE ref -->
<div ref="boxAnswers"
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint">
</div>
Inside your high-level component, you will have a function like:
function calculate() {
// NOTICE $refs
const arAnswers = this.$refs.boxAnswers.map((x) => {
// $el is the DOM element
const once = x.$el.querySelectorAll('img.imgone').length * 1;
const fives = x.$el.querySelectorAll('img.imgfive').length * 5;
return once + fives
});
return arAnswers;
}
But this is not the correct Vue way of doing things. You have to think in terms of events and data model (MVVM - don't touch DOM. DOM is just a representation of your data model). Since, you have a drag-n-drop based application, you have to listen for drag
, dragstart
, dragend
and other drag
events. For example:
<!-- NOTICE drop event -->
<div @drop="onDropEnd(box, $event)"
is="box-answers"
v-for="box in boxes.slice().reverse()"
v-bind:key="box.id"
v-bind:level="box.level"
v-bind:hint="box.hint">
</div>
Your onDropEnd
event handler will look like:
function onDrop(box, $event) {
// box - on which box drop is happening
// $event.data - which image is being dropped
// Verify $event.data is actually the image you are intending
if ($event.data === 'some-type-image') {
// Do the counting manipulations here
// ... remaining code
}
}
This is not a complete code as I don't know other components. But it should help you with the required direction.
answered Nov 21 '18 at 5:40
Harshal PatilHarshal Patil
2,98111244
2,98111244
I'm still very new to Vue so while I understand why your first answer is not the real way to do it, I'll work with that one until I get a deeper understanding of the language. Using$refs
has opened my eyes to lots of potential!
– Angry Spartan
Nov 23 '18 at 13:55
add a comment |
I'm still very new to Vue so while I understand why your first answer is not the real way to do it, I'll work with that one until I get a deeper understanding of the language. Using$refs
has opened my eyes to lots of potential!
– Angry Spartan
Nov 23 '18 at 13:55
I'm still very new to Vue so while I understand why your first answer is not the real way to do it, I'll work with that one until I get a deeper understanding of the language. Using
$refs
has opened my eyes to lots of potential!– Angry Spartan
Nov 23 '18 at 13:55
I'm still very new to Vue so while I understand why your first answer is not the real way to do it, I'll work with that one until I get a deeper understanding of the language. Using
$refs
has opened my eyes to lots of potential!– Angry Spartan
Nov 23 '18 at 13:55
add a comment |
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