Is there something like a Safe Navigation Operator that can be used on Arrays?
Yes, what you are looking for is known as the Optional Chaining operator (JavaScript / TypeScript).
The syntax shown in the MDN JavaScript documentation is:
obj.val?.prop
obj.val?.[expr]
obj.arr?.[index]
obj.func?.(args)
So, to achieve what you want, you need to change your example from:
<h6>{{simpleData?[0]}}</h6>
To:
<h6>{{simpleData?.[0]}}</h6>
^
Also see How to use optional chaining with array in Typescript?.
Answer from DavidRR on Stack OverflowMDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Operators › Optional_chaining
Optional chaining (?.) - JavaScript | MDN
This is an idiomatic pattern in JavaScript, but it gets verbose when the chain is long, and it's not safe. For example, if obj.first is a Falsy value that's not null or undefined, such as 0, it would still short-circuit and make nestedProp become 0, which may not be desirable. With the optional chaining operator (?.), however, you don't have to explicitly test and short-circuit based on the state of obj.first before trying to access obj.first.second:
W3Schools
w3schools.com › angular › angular_templates_nullsafe.asp
Angular Templates: Null-Safe Navigation (?.)
Toggle: Clicking "Toggle user" alternates user between undefined and an object to demonstrate safe access. Nullish coalescing (??): Use a ?? b over a || b when you want to keep valid falsy values like 0 or ''. ... If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail: sales@w3schools.com · If you want to report an error, or if you want to make a suggestion, send us an e-mail: help@w3schools.com · HTML Tutorial CSS Tutorial JavaScript Tutorial How To Tutorial SQL Tutorial Python Tutorial W3.CSS Tutorial Bootstrap Tutorial PHP Tutorial Java Tutorial C++ Tutorial jQuery Tutorial
html - Is there something like a Safe Navigation Operator that can be used on Arrays? - Stack Overflow
I have used Safe Navigation Operator for Objects to load on Asynchronous calls and it is pretty amazing. I thought I could reproduce the same for Arrays but it displays a template parse error in my More on stackoverflow.com
Introducing a Safe Navigation Operator in Python - Ideas - Discussions on Python.org
I’ve been considering the idea of proposing a new feature in Python - a Safe Navigation Operator, similar to what’s available in languages like JavaScript, Ruby, and C#. Before proceeding with writing a formal PEP, I wanted to bring this up here to gather initial feedback, insights, and ... More on discuss.python.org
32
October 6, 2023Is there a safe navigation operator for string indexes?
You can do obj?.['index'] instead More on reddit.com
5
9
November 2, 2022What Is the Optional Chaining Operator, and How Does It Work?
TLDR: Optional Chaining Operator is for objects, not properties? https://www.w3schools.com/jS/js_2020.asp " The Optional Chaining Operator returns undefined if an object is undefined or null (instead of throwing an error)." /TLDR I’ve found a quiz question pretty confusing but I thought I ... More on forum.freecodecamp.org
0
April 8, 2025Beyondjava
beyondjava.net › elvis-operator-aka-safe-navigation-javascript-typescript
Elvis Operator (aka Safe Navigation) in JavaScript and TypeScript
March 5, 2018 - Nonetheless, once again I'm astonished about the flexibility of the JavaScript language. Being able to tweak attribute accesses and inheritance in a more-or-less safe way is a feature few programming languages have. When it comes to support older browsers, Babel is a common answer. Proxies are no exception. There's a Babel plugin allowing you to use Proxies in ECMAScript 5. I haven't tried it myself, but it looks promising. Check it out! Talking of Babel: Babel 7.0 is going to support the Elvis operator.
MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Operators › Nullish_coalescing
Nullish coalescing operator (??) - JavaScript | MDN
The nullish coalescing operator treats undefined and null as specific values. So does the optional chaining operator (?.), which is useful to access a property of an object which may be null or undefined. Combining them, you can safely access a property of an object which may be nullish and provide a default value if it is.
Medium
medium.com › @zayani.zied › safe-navigation-operator-optional-chaining-js-and-angular-d253431a2625
Safe Navigation Operator-Optional Chaining (JS and Angular) | by Zied ZAYANI | Medium
February 20, 2023 - The safe navigation operator, also ... is a feature that allows us to safely access properties or functions of an object without throwing an error if any of the properties in the chain are nullish (null or undefined)....
NGCC in Angular Ivy
iq.js.org › questions › angular › what-is-safe-navigation-operator
What is safe navigation operator?
November 11, 2025 - The safe navigation operator(?)(or known as Elvis Operator) is used to guard against null and undefined values in property paths when you are not aware whether a path exists or not.
Top answer 1 of 4
41
Is there something like a Safe Navigation Operator that can be used on Arrays?
Yes, what you are looking for is known as the Optional Chaining operator (JavaScript / TypeScript).
The syntax shown in the MDN JavaScript documentation is:
obj.val?.prop
obj.val?.[expr]
obj.arr?.[index]
obj.func?.(args)
So, to achieve what you want, you need to change your example from:
<h6>{{simpleData?[0]}}</h6>
To:
<h6>{{simpleData?.[0]}}</h6>
^
Also see How to use optional chaining with array in Typescript?.
2 of 4
12
is there a more simpler(by code) way just like the Safe Navigation Operator?
There is ternary operator.
condition ? expr1 : expr2
<h6>{{simpleData?simpleData[0]:''}}</h6>
Wikipedia
en.wikipedia.org › wiki › Safe_navigation_operator
Safe navigation operator - Wikipedia
1 month ago - In programming languages where the navigation operator (e.g. ".") leads to an error if applied to a null object, the safe navigation operator stops the evaluation of a method/field chain and returns null as the value of the chain expression. It was first used by Groovy 1.0 in 2007 and is currently ...
Medium
medium.com › @under_the_hook › javascript-the-logical-operators-ternary-elvis-safe-navigation-4a5ab2e2c7cf
🎸 JavaScript — the Logical Operators (Ternary | Elvis | Safe navigation) | by #Under_The_Hook | Medium
December 12, 2022 - It gives us the option to shorthand the Elvis operator expression. It’s called Nullish coalescing assignment (??=). ... In the example above, the name is evaluated as ‘Suzi’, since the name variable is null. The safe navigation operator was landed in ECMAScript 2020 (ES11).
JavaScript.info
javascript.info › tutorial › the javascript language › objects: the basics
Optional chaining '?.'
April 14, 2022 - E.g. in user?.address.street.name the ?. allows user to safely be null/undefined (and returns undefined in that case), but that’s only for user. Further properties are accessed in a regular way. If we want some of them to be optional, then we’ll need to replace more .
Python.org
discuss.python.org › ideas
Introducing a Safe Navigation Operator in Python - Ideas - Discussions on Python.org
October 6, 2023 - I’ve been considering the idea of proposing a new feature in Python - a Safe Navigation Operator, similar to what’s available in languages like JavaScript, Ruby, and C#. Before proceeding with writing a formal PEP, I wanted to bring this up here to gather initial feedback, insights, and ...
Reddit
reddit.com › r/typescript › is there a safe navigation operator for string indexes?
r/typescript on Reddit: Is there a safe navigation operator for string indexes?
November 2, 2022 -
If I try to look up a string index on a nullable object like obj['index'] I get an Object is possibly 'null' error. I know I can do obj && obj['index'] but this gets tiresome especially if you are following multiple levels deep.
obj?['index'] thinks I am trying to do a ternary operator. Is there some sort of way to sugar syntax this?
Salesforce Developers
developer.salesforce.com › docs › atlas.en-us.apexcode.meta › apexcode › langCon_apex_SafeNavigationOperator.htm
Safe Navigation Operator | Apex Developer Guide | Salesforce Developers
Use the safe navigation operator (?.) to replace explicit, sequential checks for null references. This operator short-circuits expressions that attempt to operate on a null value and returns null instead of throwing a NullPointerException.
DEV Community
dev.to › rogersantos › safe-navigation-operator-coming-to-js-ts-1fc7
Safe navigation operator coming to JS/TS - DEV Community
August 10, 2019 - That said, a language-level feature to help with that is really good! And we have good news! Just a few days ago, the Safe Navigator feature has gone to Stage 3, and to the TS 3.7.0 roadmap!
Bennadel
bennadel.com › blog › 3043-providing-default-values-for-the-safe-navigation-operator-in-angular-2-beta-8.htm
Providing Default Values For The Safe Navigation Operator In Angular 2 Beta 8
April 21, 2020 - In Angular 2, the "Elvis operator" (really, the safe navigation operator) allows an object path to be safely navigated in situations in which you are not entirely sure if every object in the path exists.
Peeyushmansingh
peeyushmansingh.com › safe-navigation-operator-bang-bang-bang
Safe Navigation Operator? Bang! Bang Bang!!
March 12, 2021 - Safe Navigation Operator Safe navigation operator or optional chaining is now available in JavaScript and TypeScript >= v3.7🎉. It provides easy access to deeply nested values, so checking for nullish (undefined or null) values is simplified.
Python.org
discuss.python.org › ideas
Introducing a Safe Navigation Operator in Python - Page 2 - Ideas - Discussions on Python.org
October 8, 2023 - I’ve been considering the idea of proposing a new feature in Python - a Safe Navigation Operator, similar to what’s available in languages like JavaScript, Ruby, and C#. Before proceeding with writing a formal PEP, I wan…
freeCodeCamp
forum.freecodecamp.org › javascript
What Is the Optional Chaining Operator, and How Does It Work? - JavaScript - The freeCodeCamp Forum
April 8, 2025 - TLDR: Optional Chaining Operator is for objects, not properties? https://www.w3schools.com/jS/js_2020.asp " The Optional Chaining Operator returns undefined if an object is undefined or null (instead of throwing an er…
GitHub
github.com › vuejs › vue › issues › 4638
safe navigation operator ( ?. ) and null property paths · Issue #4638 · vuejs/vue
October 26, 2016 - We can use a safe navigation operator ( ?. ) or elvis operator similar to Angular 2.
Published Jan 03, 2017
GitHub
github.com › angular › angular › issues › 23065
Proposed Optional Chaining operator (?.) for JavaScript, and the Angular safe navigation operator · Issue #23065 · angular/angular
October 1, 2017 - There is a Level 1 TC39 proposal to add an optional chaining (?.) operator to ECMAScript. This operator is similar to the Angular template safe navigation operator. The TC39 proposal document liste...
Published Mar 29, 2018