JS format functions

JS format functions.txt

function fixJsonString(str) {
	if (!str) return;
	return(str.replace(/(\\u[0-9abcdef]{4})/ig, function(a) { return eval('"' + a + '"'); }));
};

function fixNameString(str) {
	if (!str) return;
	return(str.replace(/[^.a-zA-Z0-9_\u4e00-\u9fa5\，；。“”:！\/]/ig, ''));
};

//格式化数字，默认为小数点后两位数
function CurrencyFormatted(amount) {
    var i = parseFloat(amount);
    if(isNaN(i)) { i = 0.00; }
    var minus = '';
    if(i < 0) { minus = '-'; }
    i = Math.abs(i);
    i = parseInt((i + .005) * 100);
    i = i / 100;
    s = new String(i);
    if(s.indexOf('.') < 0) { s += '.00'; }
    if(s.indexOf('.') == (s.length - 2)) { s += '0'; }
    s = minus + s;
    return s;
}

//格式化数字，可定义小数点后位数，有浮点bug
function formatNumber(pnumber,decimals){
    if (isNaN(pnumber)) { return 0 ;};
    if (pnumber=='') { return 0 ;};

    var snum = new String(pnumber);
    var sec = snum.split('.');
    var whole = parseFloat(sec[0]);
    var result = '';
     
    if(sec.length > 1){
        var dec = new String(sec[1]);
        dec = String(parseFloat(sec[1])/Math.pow(10,(dec.length - decimals)));
        dec = String(whole + Math.round(parseFloat(dec))/Math.pow(10,decimals));
        var dot = dec.indexOf('.');
        if(dot == -1){
            dec += '.';
            dot = dec.indexOf('.');
        }
        while(dec.length <= dot + decimals) { dec += '0'; }
        result = dec;
    } else{
        var dot;
        var dec = new String(whole);
        dec += '.';
        dot = dec.indexOf('.');    
        while(dec.length <= dot + decimals) { dec += '0'; }
        result = dec;
    }  
    return result;
}

function formatFileType(path) {
	var type = '';
	if (/^(.*)(\.jpg|\.jpeg|\.gif|\.png|\.bmp|\.tiff|\.psd|\.eps|\.ai|\.raw)/i.test(path)) {
		type = "图片";
	} else if (/^(.*)(\.3gp|\.mp4|\.avi|\.mpeg|\.rm|\.rmvb|\.mov)/i.test(path)) {
		type = "视频";
	} else if (/^(.*)(\.mp3|\.wma|\.wav|\.ape|\.amr|\.midi\.ogg)/i.test(path)) {
		type = "音频";
	} else if (/^(.*)(\.sis|\.sisx|\.apk|\.jar|\.jra|\.wgz|\.swf|\.zip|\.azip|\.ipa)/i.test(path)) {
		type = "应用程序";
	} else if (/^(.*)(\.txt|\.epub|\.doc|\.docx|\.xls|\.xlsx|\.ppt|\.pptx|\.pdf|\.umd)/i.test(path)) {
		type = "文档";
	} else {
		type = "";
	}
	return type;
};

function formatFileSize(size) {
	var text = '';
	if (size < 1024) {
		text = size;
		if (size < 1) {
			text = '';
		} else {
			text = parseInt(text) + 'B';
		}
	} else if (size > 1024 && size < 1024 * 1024) {
		text = size / 1024;
		text = CurrencyFormatted(text) + 'KB';
	} else if (size > 1024 * 1024 && size < 1024 * 1024 * 1024) {
		text = size / 1024 / 1024;
		text = CurrencyFormatted(text) + 'MB';
	} else if (size > 1024 * 1024 * 1024) {
		text = size / 1024 / 1024 / 1024;
		text = CurrencyFormatted(text) + 'GB';
	}
	return text;
};

function formatTime(time) {
	var text = '';
	//item.retimes =  (item.filetotlesize - item.filedownloadsize) / item.speed;
	if (time < 60) {
		if (time < 1) {
			text = '1秒';
		} else {
			text = parseInt(time) + '秒';
		}
	} else if (time > 60 && time < 60 * 60) {
		time = parseInt(time / 60) + time % 60 / 100;
		time = formatNumber(time,2) + '分钟';
	} else if (time > 60 * 60 && time < 60 * 60 * 24) {
		time = parseInt(time / 60 / 60) +  time % (60 / 60) / 100;
		time = formatNumber(time,2) + '小时';
	} else if (time > 60 * 60 * 24) {
		time = parseInt(time / 60 / 60 / 24) + time % (60 / 60 / 24) / 100;
		time = formatNumber(time,2) + '天';
	}
	return text;
};

function formatSpace(space,source) {
	if (!space) return;
	if (source.indexOf('KB') > -1) {
		space = space * 1024;
	} else if (source.indexOf('MB') > -1) {
		space = space * 1024 * 1024;
	} else if (source.indexOf('GB') > -1) {
		space = space * 1024 * 1024 * 1024;
	} 
	return space;
};