开发中可能会用到的几个 jQuery 小提示和技巧
1、禁止右键
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$(document).ready( function () { //catch the right-click context menu $(document).bind( "contextmenu" , function (e) { //warning prompt - optional alert( "No right-clicking!" ); //delete the default context menu return
false ; }); }); |
2、文本缩放
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$(document).ready( function () { //find the current font size var
originalFontSize = $( ‘html‘ ).css( ‘font-size‘ ); //Increase the text size $( ".increaseFont" ).click( function () { var
currentFontSize = $( ‘html‘ ).css( ‘font-size‘ ); var
currentFontSizeNumber = parseFloat(currentFontSize, 10); var
newFontSize = currentFontSizeNumber*1.2; $( ‘html‘ ).css( ‘font-size‘ , newFontSize); return
false ; }); //Decrease the Text Size $( ".decreaseFont" ).click( function () { var
currentFontSize = $( ‘html‘ ).css( ‘font-size‘ ); var
currentFontSizeNum = parseFloat(currentFontSize, 10); var
newFontSize = currentFontSizeNum*0.8; $( ‘html‘ ).css( ‘font-size‘ , newFontSize); return
false ; }); // Reset Font Size $( ".resetFont" ).click( function (){ $( ‘html‘ ).css( ‘font-size‘ , originalFontSize); }); }); |
3、新窗口打开连接
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$(document).ready( function () { //select all anchor tags that have http in the href //and apply the target=_blank $( "a[href^=‘http‘]" ).attr( ‘target‘ , ‘_blank‘ ); }); |
4、样式表切换
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$(document).ready( function () { $( "a.cssSwap" ).click( function () { //swap the link rel attribute with the value in the rel $( ‘link[rel=stylesheet]‘ ).attr( ‘href‘
, $( this ).attr( ‘rel‘ )); }); }); |
5、回到顶部
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$(document).ready( function () { //when the id="top" link is clicked $( ‘#top‘ ).click( function () { //scoll the page back to the top $(document).scrollTo(0,500); } }); |
6、获取鼠标的 X、Y 坐标
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$(obj).mousemove( function (e){ //display the x and y axis values inside the P element $( ‘p‘ ).html( "X Axis : "
+ e.pageX + " | Y Axis "
+ e.pageY); }); |
7、检测当前鼠标的坐标
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$(document).ready( function () { $(obj).mousemove( function (e){ $( ‘# MouseCoordinates ‘ ).html( "X Axis Position = "
+ e.pageX + " and Y Axis Position = "
+ e.pageY); }); |
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