js操作数组

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Array.prototype.indexOf = function (val) {

    for (var i = 0; i < this.length; i++) {

        if (this[i] == val) return i;

    }

    return -1;

};

Array.prototype.remove = function (val) {

    var index = this.indexOf(val);

    if (index > -1) {

        this.splice(index, 1);

    }

};

Array.prototype.replace = function (oldValue, newValue) {

    var index = this.indexOf(oldValue);

    if (index > -1) {

        this.splice(index, 1, newValue);

    }

}

 操作的数组元素可以是基本类型、也可以是引用类型，如：[{'payPrice':'660','CertificateNum':'36010419570720154X','Enterpriseid':'99','userId':'790734'},
{'payPrice':'660','CertificateNum':'362322198811080011','Enterpriseid':'99','userId':'790742'}]