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bnorte-JavaScript
Beginning JavaScript Vocabulary
| Term | Definition |
|---|---|
| Array Literals | list values in a pair of square brackets |
| Accessing array elements | numbers in array laterals,accessed with[index] |
| multi-dimensional arrays | array within an array |
| Array Constructor | allows you to add other properties to arrays |
| Accessing nested array elements | similar to accessing in one dimensional arrays, except using multiple [index] |
| Boolean | true false statement |
| Boolean logical operators | ways to put a Boolean into code |
| comparison operators | how to compare two things |
| code comments | how to explain what functions do |
| single line comment | one line of comment |
| multi line comment | multiple lines of comment |
| console.log | prints text to console useful for debugging |
| console.time | allows you to track how long something takes |
| console.timeEnd | stops timer |
| function | groups code together for easier programming |
| function calling | creating a function |
| function hoisting | makes function available before needed |
| if statement | if something is true, do this, if not, then do not do this |
| else statement | fallback to any if statement |
| if/else statement | will only run if previous statement was false and this one is true |
| for loop | used if you know how many times you need to loop a function |
| while loop | used if you don't know how long you need to loop a function |
| do while loop | used if you know you need it at least once but not know how many times you need to |
| random | RETURNS RANDOM NUMBER BETWEEN ONE AND ZERO |
| floor | returns integer less than or equal to a number |
| pow | returns base raised to exponent |
| ceil | returns smallest integer less than of equal to a number |
| PI | returns ratio of the circumference of a cirle to it's diameter |
| sqrt | returns square root of a number |
| % | returns remainder after left side is divided by right side |
| isNAN | returns true if given number is not a number else return false |
| basic arithmetic | math |
| Prefix and Postfix increment/decrement operators | Prefix increment / decrement operators are operators that first increase the value of the variable by 1 (increment) or decrease the value of an expression / variable by 1 (decrement) and then return this incremented / decremented value. post fix= other |
| object literals | objects |
| property access | how to access things in code |
| classes | organizing similar objects in code |
| alert | alert dialogue with an OK button |
| confirm | returns true if confirmed |
| prompt | displays optional message |
| string | combining two things in code |
| length | returns length of string |
| toUpperCase/toLowerCase | returns opposite font |
| trim | deletes empty space of both ends of string |
| replace | returns a string with the first match sub-string is replaced with a new string |
| charAT | returns specific character from string |
| substring | returns sequence of characters between two indices within a string |
| indexOF | Returns the index within the calling String object of the first occurrence of the specified value, starting the search at fromIndex, Returns -1 if the value is not found. The indexOf method is case sensitive |
| switch | big if/else statement |
| ternary operator | The ternary operator is usually used as a shortcut for the if statement. |
| variable assignment | assigning a variable |
| variable changing | changing a variable |
Created by:
bnorte98
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