ttk-app-core/compatible/transreport/ie8ext.js

enterprise develop framework

Array.prototype.indexOf = Array.prototype.indexOf || function (searchElement, fromIndex) {
    if ( this === undefined || this === null ) {
        throw new TypeError( '"this" is null or not defined' );
    }
 
    var length = this.length >>> 0; // Hack to convert object.length to a UInt32
 
    fromIndex = +fromIndex || 0;
 
    if (Math.abs(fromIndex) === Infinity) {
        fromIndex = 0;
    }
 
    if (fromIndex < 0) {
        fromIndex += length;
 
        if (fromIndex < 0) {
          fromIndex = 0;
        }
    }
 
    for (; fromIndex < length; fromIndex++) {
        if (this[fromIndex] === searchElement) {
            return fromIndex;
        }
    }
 
    return -1;
};