l0bsterssg

node.js static responsive blog post generator
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utils.js (1215B)

      1 'use strict';
      2 
      3 const stripBom = require('strip-bom-string');
      4 const typeOf = require('kind-of');
      5 
      6 exports.define = function(obj, key, val) {
      7   Reflect.defineProperty(obj, key, {
      8     enumerable: false,
      9     configurable: true,
     10     writable: true,
     11     value: val
     12   });
     13 };
     14 
     15 /**
     16  * Returns true if `val` is a buffer
     17  */
     18 
     19 exports.isBuffer = val => typeOf(val) === 'buffer';
     20 
     21 /**
     22  * Returns true if `val` is an object
     23  */
     24 
     25 exports.isObject = val => typeOf(val) === 'object';
     26 
     27 /**
     28  * Cast `input` to a buffer
     29  */
     30 
     31 exports.toBuffer = function(input) {
     32   return typeof input === 'string' ? Buffer.from(input) : input;
     33 };
     34 
     35 /**
     36  * Cast `val` to a string.
     37  */
     38 
     39 exports.toString = function(input) {
     40   if (exports.isBuffer(input)) return stripBom(String(input));
     41   if (typeof input !== 'string') {
     42     throw new TypeError('expected input to be a string or buffer');
     43   }
     44   return stripBom(input);
     45 };
     46 
     47 /**
     48  * Cast `val` to an array.
     49  */
     50 
     51 exports.arrayify = function(val) {
     52   return val ? (Array.isArray(val) ? val : [val]) : [];
     53 };
     54 
     55 /**
     56  * Returns true if `str` starts with `substr`.
     57  */
     58 
     59 exports.startsWith = function(str, substr, len) {
     60   if (typeof len !== 'number') len = substr.length;
     61   return str.slice(0, len) === substr;
     62 };