And my own care, as a Mustache implementor, is thus to provide portable and robust tools. But what if a “row” of data is missing one or more of its parts? Make note that not every user in the array has the same amount of data. — Your else statement should look like this (note the ^): In mustache this is called ‘Inverted sections’. Questions: I want latitude and longitude of the current location. {{person}} is a tag, as is {{#person}}. Simply put, the engine is classified as logicless because it doesn't have constructs that support if-else statements and for loops. When I read my initial reaction: About the {{#foo}}...{{^foo}}...{{/foo}} "else" construct of @janl: [...] it's not backward-compatible with Mustache 1 (which would complain abot the missing closing tag for the first {{#foo}}). What about the cases where that isn’t possible? jquery – Scroll child div edge to parent div edge, javascript – Problem in getting a return value from an ajax script, Combining two form values in a loop using jquery, jquery – Get id of element in Isotope filtered items, javascript – How can I get the background image URL in Jquery and then replace the non URL parts of the string, jquery – Angular 8 click is working as javascript onload function. hangout), -Devin About the {{#foo}}...{{^foo}}...{{/foo}} "else" construct of @janl: this is again a convenience feature, but for the end user, this time. In this case, Mustache.js is being told: If there is no value for “foo”, show this HTML. This question is off-topic. I believe this is how Mustache should be enhanced: by providing a tiny set of powerful tools. Sign in There is no room for whiny implementors. — You'll find the tests in those two commits: On Fri, Nov 2, 2012 at 12:33 PM, Gwendal Roué notifications@github.comwrote: @devinrhode2 : "Else" clauses are No products. Ok, so I think I should clarify: I only desire if/else and each keywords You can always update your selection by clicking Cookie Preferences at the bottom of the page. Learn more, We use analytics cookies to understand how you use our websites so we can make them better, e.g. And it can: To use Mustache.js, you need to define a view object for the data and a template. privacy statement. In that article, we saw that you can use your template to check and see if a data point has a value, and if so, render some markup. By clicking “Sign up for GitHub”, you agree to our terms of service and Their main difference is the fact that keywords are dead-ends, Questions: I use this library: how can I change Gantt chart (i use the highchart Gantt Library) calendar from the Gregorian calendar to the Jalali calendar? Is it supported? We use essential cookies to perform essential website functions, e.g. So it deserves a look. javascript – How to get relative image coordinate of this div? A construct like {{#foo}}...{{^}}...{{/}} could be implemented without breaking compatibility. On the contrary, nobody would be hurt since nobody keeps In this case, it would be the text: “no value!”. {{/}} I think I'd rather see a simple converter that adds and removes these keywords for compatibility. Posted by: admin Questions: Closed. Reply to this email directly or view it on GitHub. The directive v-if is used to conditionally render a block. This is actually a LOT better then maintaining image url’s or other media that might or might not change in your templates, but takes some getting used to. Yes, it's possible for Mustache to render array indexes as well. Successfully merging a pull request may close this issue. feature. Refer to this official Spring script template documentation.. P.S ScriptTemplateConfigurer has been supported since Spring 4.2 On the contrary, nobody would be hurt since nobody keeps ill-formed templates in their sources. Maven Dependency They are built-in helpers, that use the public Handlebars API. Update the question so it's on-topic for Stack Overflow. Mustache already have a few ones: #, >, ^, /. What's the difference between “groups” and “captures” in .NET regular expressions? (I don't want to sound harsh, I just say the efficiency argument does not stand). Leave a comment. When I store the python function return value in JavaScript variable using eel library JavaScript is giving callback error, javascript – GeoLocation script not working ? It's not as if versatile sections branching was costly. The word “else” isn’t even mentioned 🙁. And it can: abot the missing closing tag for the first {{#foo}}). On Thu, Nov 1, 2012 at 12:36 AM, Gwendal Roué notifications@github.comwrote: @devinrhode2 Yeah, if/else would be Making something like handlebars or anything with more keywords portable is a bit more work I guess. Some people are missing either “region”, “phone” or “email”. they're used to gather information about the pages you visit and how many clicks you need to accomplish a task. javascript – window.addEventListener causes browser slowdowns – Firefox only. Seriously. [...] it's not backward-compatible with Mustache 1 (which would complain We should avoid adding more keywords, and instead make Mustache more versatile. Have a question about this project? Comprehensive support would allow those syntaxes as well: Tests for parsing errors would enter, Probably not, never done Obj-C before, and there's other js things I'd like In this way, we can create an “if not” logic, in which we are saying: “if there is no foo, or if foo is ‘falsy’, then render ‘no value!’. This is something you solve in the “controller”, which is the point of logicless templating. I just looked into #22 and see this syntax is exactly what was proposed there. February 24, 2020 Javascript Leave a comment. Handlebars users can write their own helpers with the same API, and extend the language. In that case, we might want to render some specific markup that says “no data found”. {{#products}}{{name}}{{/products}} I do not see the point of #22 and #23. they're used to log you in. How Do I Create “if not” logic in my Mustache.js JavaScript Template? You have to wait for the next release of the language, if it ever happens. of GRMustache? The block will only be rendered if the directive’s expression returns a truthy value. @groue, thoughts? It is a little more complex than in Handlebars, because Handlebars is Javascript-only, and does not care about being ported in other languages. {{^present? We use optional third-party analytics cookies to understand how you use so we can build better products. The work done so far on lambda sections, lambda variables, and filters go in the right direction: they allow the user to inject his code right into the Mustache engine, and to extend it. Need to display only one error out of these three error. If so, here is what I would do. So keywords are clearly the wrong direction. On the contrary, nobody would be hurt since nobody keeps ill-formed templates … When using Mustache.js, this is accomplished by using the following set of characters: {{^foo}}no data! I also would like to see an explicit "if" syntax, like @wesen mentioned in #55 (comment). — Is this sort of thing considered bad? When I read my initial reaction: About the {{#foo}}...{{^foo}}...{{/foo}} "else" construct of @janl I am trying to give some condition to filter only one store id with the same error. v-if. my code