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Wrapper
Wrapper
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  • Wrap {}
    • Overview
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    • Accessors
      • closing
      • opening
      • text
      • [Symbol.toStringTag]
    • Properties
      • #closing
      • #opening
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        • hasClosing()
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        • ⚠ textHasClosing()
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  • Wrap.prototype.hasOpening()
  • Parameters
  • Returns
  • Example usage
  • Given closing chars

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  1. Wrap {}
  2. Methods
  3. Instance

hasOpening()

PrevioushasClosing()NexthasText()

Last updated 3 years ago

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Wrap.prototype.hasOpening()

Checks whether the of a specified object has the chars or given chars.

If given opening chars in the constructor are the empty string, the method returns false.

wrap.class.ts
public hasOpening(opening?: string): boolean {
  return (
    this.#opening.length >= 1 &&
    (typeof opening === 'string' ? this.#opening === opening : true)
  );
}

Parameters

opening?: string

Optional opening chars of a type to check if the contains them at the beginning.

Returns

The return value is a indicating whether the has the chars or given chars.

Example usage

// Example usage.
import { Wrap } from '@angular-package/wrapper';

// Returns true.
new Wrap(`[`, `]`, 'quote').hasOpening();

// Returns false.
new Wrap(``, `]`, 'quote').hasOpening();

Given closing chars

// Example usage of given opening chars.
import { Wrap } from '@angular-package/wrapper';

// Returns true.
new Wrap(`[`, `]`, 'quote').hasOpening('[');

// Returns false.
new Wrap(`[`, `]`, 'quote').hasOpening('');

// Returns false.
new Wrap(``, `]`, 'quote').hasOpening('');

// Returns false.
new Wrap(``, `]`, 'quote').hasOpening('[');
primitive value
opening
string
primitive value
boolean
primitive value
opening
opening
opening