How to create dynamic html element base on array vuejs - vue.js

I would like to create input element base on some condition please help me to do in best practice to resolve it.
<div v-for="(item, index) in sections">
<input :type="item.type" placeholder="item.type">
</div>
https://jsfiddle.net/170zvw2L/1/
if we have dropdown value takes in it automatically.
Thanks
Html should create automatically if possible to change json please guide need best solutions for this

Related

How to use `v-if` and `v-for` on the same element?

Hi I'm trying to figure out how to use v-if on a iterated element which also uses v-for. I need to check if the current element has any of a series of classes, which are numbers.
so the classes of each article would be:
<article class="post-item post-guide 12 22 19 30 55">...
this is the HTML that renders all:
<article v-if="showIfHasClass" :class="'post-item post-guide ' + guide.categories.toString().replace(/,/g, ' ')"
v-for="(guide, index) in guides" :key="index">
<header>
<h1 class="post-title">
{{ guide.title.rendered}}
</h1>
</header>
</article>
I have tried with methods that check the class of all elements, that works, but i'm trying to use a clean Vue built-in solution with v-if without success, i'm not able to retrieve the class of this in a successful way.
Should showIfHasClass be a computed property? I have tried with that too... but it seems, I'm missing something along the way.
my data I have to check against is an array:
data:{
guides: [...]
selectedCategories: [1, 22, 33, 100, 30];
}
or maybe it is better to directly loop over the guides and check if they have the selectedCategory or not, then remove the element from the guides data array?
What is more effective?
Besides the option to create an additional filtered computed (effectively eliminating the need to use v-for and v-if on the same element), you also have a template level way of dealing with such edge-cases: the <template> tag.
The <template> tag allows you to use arbitrary template logic without actually rendering an extra element. Just remember that, because it doesn't render any element, you have to place the keys from the v-for on the actual elements, like this:
<template v-for="(guide, index) in guides">
<article v-if="isGuideVisible(guide)"
:key="index"
class="post-item post-guide"
:class="[guide.categories.toString().replace(/,/g, ' ')]">
<header>
<h1 v-text="guide.title.rendered" />
</header>
</article>
</template>
isGuideVisible should be a method returning whether the item is rendered, so you don't have to write that logic inside your markup. One advantage of this method is that you can follow your v-if element with a fallback v-else element, should you want to replace the missing items with fallback content. Just remember to also :key="index" the fallback element as well.
Apart from the above use-case, <template> tags come in handy when rendering additional wrapper elements is not an option (would result in invalid HTML markup) (i.e: table > tr > td relations or ol/ul > li relations).
It's mentioned here as "invisible wrapper", but it doesn't have a dedicated section in the docs.
Side note: since you haven't actually shown what's inside guide.categories, I can't advise on it, but there's probably a cleaner way to deal with it than .toString().replace(). If guide.categories is an array of strings, you could simply go: :class="guide.categories".
I think the most Vue way is to create a computed property with filtered items from selected categories, then use that in v-for loop (the idea is to move the business logic away from template).
computed: {
filteredItems(){
return this.guides.filter(e => this.selectedCategories.includes(e.category))
}
}
Also, as a note, it is not recommended to use v-if and v-for on the same element, as it may interfere with the rendering and ordering of loop elements. If you don't want to add another level of nesting, you can loop on a 'template' element.
<template v-for="item in items">
// Note the key is defined on real element, and not on template
<item-element v-if='condition' :key="item.key"></item-element>
</template>

vue multiple tag 'template' in one single file component

I am work in company with big frontend team, and guys use multiple template tag in single file components. Before that I never see something like this, for me it bad practice. But head developers think that I am stuped, when I ask about that.
Can some one please explain me, when I must use it and why? and if it possible please give link to vue documentation.
And yes, we use vuetify.
example:
<template>
<VContainer>
<VRow>
<VCol>
<h2>
{{ title }}
</h2>
<p>
{{ subtitle }}
</p>
</VCol>
</VRow>
<Share />
<template v-if="p.length > 0">
<VRow>
<VCol>
{{ text }}
</VCol>
</VRow>
<VDivider/>
</template>
<template v-for="(t, index) in ts">
<VRow :key="index">
<VCol v-if="t.p.length > 0">
{{ text }}
</VCol>
</VRow>
<VDivider
v-if="index < t.length - 1"
:key="`divider-${index}`"
class="mx-3"
/>
</template>
</VContainer>
</template>
The <template> used here is just a way to handle loops or conditionals without inserting extra nodes into the DOM.
You could put the v-if or v-for directly on the <VRow> instead of on a <template> that wraps it, but sometimes that's undesirable -- if there are already other conditions there that you want to keep separate, or if you want to wrap multiple nodes in the same condition, as in your example where you have both a <VRow> and a <VDivider> contained in a single <template>.
It's not bad practice and has no undesirable performance effect at all. Your head developers should be better able to communicate that to you rather than calling you 'stupid'.
I think it does't matter use multiple template, We should not use div wrapper the condition render Component, the div will insert to DOM.
here is the official documemnt https://v2.vuejs.org/v2/guide/conditional.html#Conditional-Groups-with-v-if-on-lt-template-gt

Splinter Is it possible to use browser.fill without name as a query

I would like to use an absolute xpath to fill in a search bar. The ids and classes are dynamically generated and there is no name variable or instance. So it feels like I'm stuck without a tool to fill in boxes without the named variable.
Is there a way around this? Can I somehow change the absolute xpath to look like its a name assignment and then query and fill based on the new 'type' I assigned the absolute xpath?
Is there a method for this in Selenium if not available in Splinter?
I've select by CSS and I'm finding this error 'selenium.common.exceptions.InvalidElementStateException: Message: Element is not currently interactable and may not be manipulated'
Edit:
<div class="type-ahead-input-container" role="search">
<div class="type-ahead-input-wrapper">
<div class="type-ahead-input">
<label class="visually-hidden" for="a11y-ember10393">
Search
</label>
<!---->
<input id="a11y-ember10393" class="ember-text-field ember-view" aria-
autocomplete="list" autocomplete="off" spellcheck="false"
placeholder="Search" autocorrect="off" autocapitalize="off" role="combobox"
aria-expanded="true" aria-owns="ember11064" data-artdeco-is-focused="true"/>
<div class="type-ahead-input-icons">
<!---->
</div>
</div>
<!---->
</div>
</div>
As you have asked Is there a method for this in Selenium, the Answer is Yes.
Selenium supports Sikuli. Sikuli automates anything you see on the screen. It uses image recognition to identify and control GUI components. It is useful when there is no easy access to a GUI's internal or source code.
You can find more about Sikuli here.
Let me know if this answers your question.
When you get an error-message like that, it could be that your search result is not what you expected. It could be that you are getting more than one result, ie a list. On a list you can not input.
You can find the input boxes with an xpath, select the prefered one from the list (by trying) and put a text in it with the WebDriverElement _set_value method. That is not appropriate because of the _, but it is usefull.
input_list = browser.find_by_xpath('//div[#class="type-ahead-input"]/input[#class="ember-textfield ember-view"]')
input_list[1]._set_value('just a text to see whether it is working')

Selenium access a form field with bad id

Looking for the best approach to enter / read a value from a form field that lacks human readable ids / references.
The basic outline looks like
<div id="form-2143">
<div id="numberfield-1234">
<label id="numberfield-1234-label">
<span class="x-form-label">Field Name 1</span>
</label>
<div id="numberfield-1234-body">
<div id="numberfield-1234-wrap">
<input id="numberfield-1234-input" class="form-field" componentid="numberfield-1234">
</div>
</div>
</div>
...
</div>
There are more class defs and attributes involved, but above is the "basics" I have to work with.
This form has a number of entries, and there are more forms like it, so I am looking for a way to search for the label name, and access the input field within the same container.
I lack control of the site and cannot edit the HTML structure of the site; meaning I cannot give sensible names to the ids, but want to avoid hard referencing the poor names. Any suggestions on how to get Robot Framework & selenium to reference these elements?
Highlighting Andersson's answer in the comments
Using the XPath
//label[span[text()="Field Name 1"]]/following-sibling::div//input
Works for the above example.
The key part that answers the question of how to reference nearby elements is
/following-sibling

Xpath Selenium trouble

Can anyone help me? i tried using Firepath for a correct Xpath however the code it gives me is incorrect in my eyes. First line in the examples, is the provided one.
.//*[#id='content']/div/div/div[1]/h2/span
<div id="content" class="article">
<h1>News</h1>
<div>
<div>
<div class="summary">
<h2>
<span>9</span>
// this should be the correct xpath i think
_driver.findElement(By.xpath("//*div[#id='content']/div/span.getText()"));
Here i want check if the text in between is greater or equal to 1
and the other is:
.//*[#id='content']/div/div/div[3]
<div id="content" class="article">
<h1>News</h1>
<div>
<div>
<div class="summary">
<div class="form fancy">
<div class="common results">
Here i want to check if the div class common results has been made, 1 item equals 1 common results
For retrieving span text you can use this
String spanText=driver.findElement(By.xpath("//div[#id='content']/div/div/div/h2/span")).getText();
System.out.println(spanText);
From the second question I am not so much clear.You can get class name like this, Please explain me if its not your solution
String className=driver.findElement(By.xpath("//*[#id='content']/div/div/div/div/div")).getAttribute("class");
System.out.println(className);
I would suggest you making usage of:
//div[#id='content']/div/div/div/h2/span/text()
Note: the html code you shared was not well formed. I would suggest you to test in advance the code and the xpath with http://www.xpathtester.com/xpath (to fix the code) and http://codebeautify.org/Xpath-Tester (to test your xpath)