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angular.ts
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angular.ts
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/**
* Indicates whether the attribute name is an Angular binding
*
* ---
*
* Example binding:
* ```
* button([disabled]="isUnchanged") Save
* ```
*
* In this case `name` is `[disabled]`
*
* ---
*
* @param name Name of tag attribute
*/
export function isAngularBinding(name: string): boolean {
return name.length >= 3 && name[0] === '[' && name[name.length - 1] === ']';
}
/**
* Indicates whether the attribute name is an Angular event
*
* ---
*
* Example event:
* ```
* button((click)="onClickMe()") Click me!
* ```
*
* In this case `name` is `(click)`
*
* ---
*
* @param name Name of tag attribute
*/
export function isAngularAction(name: string): boolean {
return name.length >= 3 && name[0] === '(' && name[name.length - 1] === ')';
}
/**
* Indicates whether the attribute name is an Angular directive
*
* ---
*
* Example directive:
* ```
* li(*ngFor="let customer of customers") {{ customer.name }}
* ```
*
* In this case `name` is `*ngFor`
*
* ---
*
* @param name Name of tag attribute
*/
export function isAngularDirective(name: string): boolean {
return name.length >= 2 && name[0] === '*';
}
/**
* Indicates whether the attribute value is an Angular interpolation
*
* ---
*
* Example interpolation:
* ```
* img(src="{{ itemImageUrl }}")
* ```
*
* In this case `val` is `"{{ itemImageUrl }}"`
*
* ---
*
* @param name Name of tag attribute
*/
export function isAngularInterpolation(val: string): boolean {
return (
val.length >= 5 &&
((val[0] === '"' && val[val.length - 1] === '"') || (val[0] === "'" && val[val.length - 1] === "'")) &&
val[1] === '{' &&
val[2] === '{' &&
val[val.length - 2] === '}' &&
val[val.length - 3] === '}'
);
}