Java development work notes (front-end)

One, jquery dynamically sets the label to hide and show

$("#id").css('display','none');

$("#id").css('display','block');

In some cases, dynamically adjusting the label to block visibility will disrupt the page layout. At this time, you can use the following settings:

$("#id").css('display','');

Two, hide when there is too much content in the form td

.table tr td {
    text-overflow:ellipsis; white-space:nowrap; overflow:hidden;
}

If you want the mouse to move up to display all the content, you can set the title for td

<td title="${vo.province }">${vo.province }</td>

Can write fixed data, can also display the value of background traversal

Three, js check latitude and longitude

//Check longitude 
function checkLong(){ 
    var longrg = /^(\-|\+)? (((\d|[1-9]\d|1[0-7]\d|0{1, 3})\.\d{0,6})|(\d|[1-9]\d|1[0-7]\d|0{1,3})|180\.0{0, 6}|180)$/; 
    var lng = $("#longitude").val(); 
    if(!longrg.test(lng)){ return'The 
        integer part of longitude is 0-180, and the decimal part is 0 to 6. Bit!'; 
    } 
    return true; 
} 
//Latitude 
function checkLat(){ 
    var latreg = /^(\-|\+)?([0-8]?\d{1}\.\d{0,6 }|90\.0{0,6}|[0-8]?\d{1}|90)$/; 
    var lat = $("#latitude").val(); 
    if(!latreg.test (lat)){ 
        return'The integer part of the latitude is 0-90, and the decimal part is 0 to 6 digits!'; 
    } 
    return true; 
}