SmartNgRX Documentation

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Introduction MarkAndDeleteInit Global Mark and Delete Entity Mark and Delete
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Intro Effects Service Injection Token Entity Definitions Global Registration Entity Registration ChildDefinition Smart Signals Top Level Signals
Introduction MarkAndDeleteInit Global Mark and Delete Entity Mark and Delete
Child Fields
Retrieving Rows Virtual IDs Updates Create (Add) a Row Delete a Row
Using With Existing Signals WebSockets Error Handling
Introduction Database Structure Retrieving Data Setup Client Side Effects Services Selectors Tree Component Updating Fields Adding Rows Deleting Rows Processing WebSocket Messages
Introduction Database Structure Retrieving Data Setup Client Side Effects Services Smart Signals (Selectors) Tree Component Updating Fields Adding Rows Deleting Rows Processing WebSocket Messages
Smart NgRX API Smart Signals API Internal API API Changes
Smart Signals API / Function

assert

This is an internal function documented here for reference by people doing development on this library.

Asserts that a value is true. You should only use one condition at a time. If you are working with a value that should always be true, this is easier than putting if(condition) around what you are going to use the condition for.

Example

instead of this:

let variableWeExpectWilNotBeNullOrUndefined: SomeType;
// somewhere in here we set the variable
if(variableWeExpectWilNotBeNullOrUndefined) {
  return; // or throw an exception or whatever
}
// now use the variable without having to use ? or ! everywhere

do this:

let variableWeExpectWilNotBeNullOrUndefined: SomeType;
// somewhere in here we set the variable
assert(variableWeExpectWilNotBeNullOrUndefined, 'variableWeExpectWilNotBeNullOrUndefined');
// now use the variable without having to use ? or ! everywhere

Presentation

function assert(condition: boolean, context: string): void;

Returns

void

Parameters

NameTypeDescription
condition
boolean

condition to check

context
string

description of what we checked. If you put a GUID in the string it will make it easier to find the error in the source code.