Summary of common JavaScript methods

Summary of common javascript methods

 

Js Code {
Function onclick ()
{
Function onclick ()
{
Function onclick ()
{
Function onclick ()
{
Function onclick ()
{
Dp. sh. Toolbar. CopyToClipboard (this); return false;
}
}
}
}
}
} "Href =" http://writeblog.csdn.net/# ">

1. /**
2. * String trim method
3. * @ Return
4. */
5. String. Prototype. Trim = function (){
6. Return this. Replace (/(^/S *) | (/S * $)/g ,"");
7. }
8. String. Prototype. ltrim = function (){
9. Return this. Replace (/(^/S *)/g ,"");
10. }
11. String. prototype. rtrim = function (){
12. Return this. replace (/s * $)/g ,"");
13. }
14. Function isBlank (s ){
15. If (s = null | s. trim () = ''){
16. Return true;
17. }
18. Return false;
19. }

/*** Trim method of the String * @ return */String. prototype. trim = function () {return this. replace (/(^/s *) | (/s * $)/g, "");} String. prototype. ltrim = function () {return this. replace (/(^/s *)/g, "");} String. prototype. rtrim = function () {return this. replace (/s * $)/g, "");} function isBlank (s) {if (s = null | s. trim () = '') {return true;} return false ;}

 

 

Js Code {
Function onclick ()
{
Function onclick ()
{
Function onclick ()
{
Function onclick ()
{
Function onclick ()
{
Dp. sh. Toolbar. CopyToClipboard (this); return false;
}
}
}
}
}
} "Href =" http://writeblog.csdn.net/# ">

1. /**
2. * Select all or not all
3. * @ Param mark indicates whether to select all or reverse.
4. * @ Param name: name of the HTML Element
5. * @ Return
6. */
7. Function selectAll (mark, name ){
8. Var checkboxs = document. getElementsByName (name );
9. If (mark ){
10. For (var I = 0; I <checkboxs. length; I + = 1 ){
11. Checkboxs [I]. checked = true;
12. }
13. } Else {
14. For (var I = 0; I <checkboxs. length; I + = 1 ){
15. Checkboxs [I]. checked = false;
16. }
17. }
18. }

/*** Select all or deselect function * @ param mark indicates whether to select all or deselect * @ param name corresponding to the HTML element name * @ return */function selectAll (mark, name) {var checkboxs = document. getElementsByName (name); if (mark) {for (var I = 0; I <checkboxs. length; I + = 1) {checkboxs [I]. checked = true ;}} else {for (var I = 0; I <checkboxs. length; I + = 1) {checkboxs [I]. checked = false ;}}}

 

 

 

JS Code {
Function onclick ()
{
Function onclick ()
{
Function onclick ()
{
Function onclick ()
{
Function onclick ()
{
DP. Sh. toolbar. copytoclipboard (this); Return false;
}
}
}
}
}
} "Href =" http://writeblog.csdn.net/# ">

1. /**
2. * Check whether the check box is selected.
3. * If selected, true is returned. Otherwise, false is returned.
4. * @ Param name
5. * @ Return
6. */
7. Function checkselect (name ){
8. VaR checkboxs = Document. getelementsbyname (name );
9. For (VAR I = 0; I <checkboxs. length; I + = 1 ){
10. If (checkboxs [I]. Checked = true ){
11. Return true;
12. }
13. }
14. Return false;
15. }

/*** Check whether the check box is selected * true if selected; otherwise false * @ Param name * @ return */function checkselect (name) {var checkboxs = document. getelementsbyname (name); For (VAR I = 0; I <checkboxs. length; I + = 1) {If (checkboxs [I]. checked = true) {return true;} return false ;}

 

 

 

JS Code {
Function onclick ()
{
Function onclick ()
{
Function onclick ()
{
Function onclick ()
{
Function onclick ()
{
DP. Sh. toolbar. copytoclipboard (this); Return false;
}
}
}
}
}
} "Href =" http://writeblog.csdn.net/# ">

1. /**
2. * Format the date according to yyy-MM-dd.
3. * @ Param d the date to be formatted
4. */
5. Function formatDate (d ){
6. Var mon = d. getMonth () + 1;
7. Var year = d. getFullYear ();
8. Var date = d. getDate ();
9. Return year + "-" + (mon <10? "0" + mon: mon) + "-" + (date <10? "0" + date: date );
10. }

 

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