js实现iput自动补齐并选中

jQuery.fn.setSelection = function(selectionStart, selectionEnd) {

    if(this.lengh == 0) return this;

    input = this[0];

 

    if (input.createTextRange) {

        var range = input.createTextRange();

        range.collapse(true);

        range.moveEnd('character', selectionEnd);

        range.moveStart('character', selectionStart);

        range.select();

    } else if (input.setSelectionRange) {

        input.focus();

        input.setSelectionRange(selectionStart, selectionEnd);

    }

 

    return this;

}

 

//var start = $("#god-input").val().length;

 

//$("#god-input").val($('#god_element_'+god_index).attr('dataurl') ); //

//$("#god-input").setSelection(start,$("#god-input").val().length);