有mqtt

heyujie

2021-05-20 6ebdefb4a5b2be82a8c452c0bb4624f3d85a17b7

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
"use strict";
 
var numberIsNaN       = require("../../number/is-nan")
  , toPosInt          = require("../../number/to-pos-integer")
  , value             = require("../../object/valid-value")
  , indexOf           = Array.prototype.indexOf
  , objHasOwnProperty = Object.prototype.hasOwnProperty
  , abs               = Math.abs
  , floor             = Math.floor;
 
module.exports = function (searchElement/*, fromIndex*/) {
    var i, length, fromIndex, val;
    if (!numberIsNaN(searchElement)) return indexOf.apply(this, arguments);
 
    length = toPosInt(value(this).length);
    fromIndex = arguments[1];
    if (isNaN(fromIndex)) fromIndex = 0;
    else if (fromIndex >= 0) fromIndex = floor(fromIndex);
    else fromIndex = toPosInt(this.length) - floor(abs(fromIndex));
 
    for (i = fromIndex; i < length; ++i) {
        if (objHasOwnProperty.call(this, i)) {
            val = this[i];
            if (numberIsNaN(val)) return i; // Jslint: ignore
        }
    }
    return -1;
};