JavaScript function index

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JavaScript function index

JavaScript Math objects and functions
JavaScript String objects and functions
JavaScript Date objects and functions

JavaScript Math objects and functions

Math Function
Js Code

1. * Math. abs () -- returns the absolute value of a number.
2. * Math. acos () -- returns the arc cosine of a number.
3. * Math. asin () -- returns the arc sine of a number.
4. * Math. atan () -- returns the arc tangent of a number.
5. * Math. atan2 () -- returns the angle (in radians) from the x axis to the point (x, y)
6. * Math. ceil () -- returns the smallest integer greater than or equal to the number parameter (the entire function) and rounds the number up.
7. * Math. cos () -- returns the cosine of a number.
8. * Math. exp () -- returns the x power (exponent) of E (base number of natural logarithm)
9. * Math. floor () -- returns the maximum integer smaller than or equal to the number parameter, and homes the number
10. * Math. log () -- returns the natural logarithm of a number.
11. * Math. max () -- returns a large value from several numbers.
12. * Math. min () -- return a smaller value of several numbers.
13. * Math. Pow () -- return the specified power of the base number
14. * Math. Random () -- returns a pseudo-random number between 0 and 1.
15. * Math. Round () -- returns the nearest integer.
16. * Math. Sin () -- returns the sine of a number.
17. * Math. SQRT () -- returns the square root of a number.
18. * Math. Tan () -- returns the tangent of a number.
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20. Math attributes
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22. * Math. e attribute -- returns the base number of the natural logarithm. e is approximately 2.718.
23. * Math. ln2 attribute -- returns the natural logarithm loge2 of 2, approximately 0.693
24. * Math. ln10 Property -- returns the natural logarithm loge2 of 10, approximately 2.302
25. * Math. log2e attribute -- returns the base-2 logarithm of E log2e, approximately 1.442
26. * Math. log10e attribute -- returns the base-10 logarithm of E log10e. The greater the value is 0.434.
27. * Math. PI property -- returns the ratio of the circumference of the circle to its diameter (circumference rate π), approximately 3.1415926
28. * Math. sqrt1_2 Property -- returns the square root of 0.5, or the square root of 2 except 1, which is approximately 0.707
29. * Math. sqrt2 Property -- returns the square root of 2, approximately 1.414

* Math. Abs () -- returns the absolute value of a number.
* Math. ACOs () -- returns the arc cosine of a number.
* Math. asin () -- returns the inverse sine of a number.
* Math. atan () -- returns the arc tangent of a number.
* Math. atan2 () -- returns the angle (in radians) from the x axis to the point (x, y)
* Math. ceil () -- returns the smallest integer greater than or equal to the number parameter (the entire function) and rounds the number up.
* Math. cos () -- returns the cosine of a number.
* Math. exp () -- returns the x power (exponent) of E (base number of natural logarithm)
* Math. floor () -- returns the maximum integer smaller than or equal to the number parameter, and homes the number
* Math. log () -- returns the natural logarithm of a number.
* Math. max () -- returns a large value from several numbers.
* Math. min () -- returns a smaller value of several numbers.
* Math. pow () -- returns the specified power of the base number.
* Math. random () -- returns a pseudo-random number between 0 and 1.
* Math. round () -- returns the nearest integer to the number.
* Math. sin () -- returns the sine of a number.
* Math. sqrt () -- returns the square root of a number.
* Math. tan () -- returns the tangent of a number.

Math attributes

* Math. E attribute -- returns the base number of the natural logarithm. E is approximately 2.718.
* Math. LN2 Property -- returns the natural logarithm loge2 of 2, approximately 0.693
* Math. LN10 Property -- returns the natural logarithm loge2 of 10, approximately 2.302
* Math. log2e attribute -- returns the base-2 logarithm of E log2e, which is approximately 1.442
* Math. log10e attribute -- returns the base-10 logarithm of E log10e, which is equal to 0.434
* Math. PI property -- returns the ratio of the circumference of the circle to its diameter (circumference rate π), which is approximately 3.1415926
* Math. sqrt1_2 Property -- returns the square root of 0.5, or the square root of 2 except 1, which is approximately 0.707
* Math. sqrt2 Property -- returns the square root of 2, approximately 1.414

Javascript string objects and functions

JS Code

1. * anchor () function -- returns the anchor whose name attribute is str in the HTML a tag.
2. * big () function -- returns the big font defined by the HTML big tag.
3. * blink () function -- returns a blinking string defined by the html blink tag.
4. * Bold () function -- returns a bold string defined using the html B tag.
5. * charat () function -- returns the character of the specified position (N)
6. * charcodeat () function -- returns the Unicode code of the specified position (n) character
7. * Concat () function -- merges multiple strings and returns the merged result.
8. * fixed () function -- returns the single room distance string defined by the html tt tag.
9. * fontcolor () function -- returns a color string defined by the color attribute in the HTML Font Tag.
10. * fontsize () function -- returns a string of the specified size defined by the size attribute in the HTML Font Tag.
11. * fromcharcode () function -- returns a string consisting of multiple Unicode codes.
12. * indexof () function -- returns the position of substring in string.
13. * italics () function -- returns the Italic string defined using the html I tag
14. * lastindexof () function -- returns the position where substring matches (appears) in string.
15. * Link () function -- returns the link defined using the HTML a tag.
16. * localecompare () function -- use local rules to compare string and string2, and return comparison results
17. * replace () function -- replace oldstr1 in string with newstr2
18. * slice () function -- returns the intercepted string
19. * Small () function -- returns a small font string defined using the HTML small tag
20. * Split () function -- splits the string into a string array and returns this array.
21. * strike () function -- returns a string that defines the strikethrough style using the HTML strike tag.
22. * sub () function -- returns the subscript string defined using the HTML sub tag.
23. * substr () function -- returns the string whose length is length from the position of startpos of string.
24. * substring () function -- returns the string from the startpos position of the string to the endpos position.
25. * SUP () function -- returns the supermark string defined using the HTML sup tag.
26. * toLocaleLowerCase () function -- returns a local lowercase string
27. * toLocaleUpperCase () function -- returns a local uppercase string.
28. * toLowerCase () function -- returns a lowercase string
29. * toUpperCase () function -- returns an uppercase string.

* Anchor () function -- returns the anchor whose name attribute is str in the HTML a tag.
* Big () function -- returns the big font defined by the HTML big tag.
* Blink () function -- returns the blinking string defined by the HTML blink tag.
* Bold () function -- returns a bold string defined using the HTML B tag.
* CharAt () function -- returns the character at the specified position (n)
* CharCodeAt () function -- returns the Unicode code of the specified position (n) character
* Concat () function -- merges multiple strings and returns the merged result.
* Fixed () function -- returns the single-byte string defined by the HTML tt tag.
* Fontcolor () function -- returns a color string defined by the color attribute in the HTML font Tag.
* Fontsize () function -- returns a string of the specified size defined by the size attribute in the HTML font Tag.
* FromCharCode () function -- returns a string consisting of multiple Unicode codes.
* IndexOf () function -- returns the position of the substring in the string.
* Italics () function -- returns an italic string defined using the HTML I tag.
* Lastindexof () function -- returns the position where the substring matches (appears) in the string.
* Link () function -- returns the link defined using the HTML a tag.
* Localecompare () function -- use a local rule to compare string and string2, and return the comparison result.
* Replace () function -- replace oldstr1 in string with newstr2
* Slice () function -- returns the intercepted string
* Small () function -- returns a small font string defined using the HTML small tag.
* Split () function -- Splits a string into a string array and returns this array.
* Strike () function -- returns a string that defines the strikethrough style using the HTML strike tag.
* Sub () function -- returns the subscript string defined using the HTML sub tag.
* Substr () function -- returns the string whose length is length from the position of startpos of the string.
* Substring () function -- returns the string from the string's startpos position to the endpos position.
* SUP () function -- returns the supermark string defined using the HTML sup tag.
* Tolocalelowercase () function -- returns a local lowercase string
* Tolocaleuppercase () function -- returns a local uppercase string
* Tolowercase () function -- returns a lower-case string.
* Touppercase () function -- returns an uppercase string.

Javascript date objects and functions
Js Code

1. * Date () function -- returns the current Date and time
2. * getDate () function -- returns the number of days in the month of the date object (1-31)
3. * getDay () function -- returns the day of the week (0-6) in the date object)
4. * getFullYear () function -- returns the four-digit year in the date object.
5. * getHours () function -- returns the hour (0-23) in the date object)
6. * getMilliseconds () function -- returns the number of milliseconds in the date object (0-999)
7. * getMinutes () function -- returns the number of minutes in the date object (0-59)
8. * getMonth () function -- returns the number of months in the date object (0-11)
9. * getSeconds () function -- returns the number of seconds (0-59) in the date object)
10. * getTime () function -- returns the timestamp representation (expressed in milliseconds) of the date object)
11. * getTimezoneOffset () function -- returns the time difference between the local time and the current date expressed in UTC, in minutes
12. * getUTCDate () function -- returns the Day (1-31) of the month expressed in the World Standard Time (UTC) in the date object)
13. * getUTCDay () function -- returns the day of the week (0-6) represented by the World Standard Time (UTC) in the date object)
14. * getUTCFullYear () function -- returns the four-digit year represented by the World Standard Time (UTC) in the date object.
15. * getutchours () function -- returns the number of hours (0-23) represented by the World Standard Time (UTC) in the date object)