Summary of JavaScript knowledge points: functions and events

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JavaScript function With events

1. Custom function

The sample is as follows:

2.JavaScript system function

• parseInt() Convert the string to an integer
• parseFloat() Convert the string to a decimal
• isNaN() Determine whether it is NaN (number)
• eval() runs the js code formed as a string and returns the execution result

##eval example:

2 .JavaScript eventPage event:
onload() Page loading
onblur() Lose focus
onfocus() Gain focus
onchange() Input box changes
Mouse Event:
onclick() click
onmousedown() mouse move in
onmouseout() mouse move out
onmousemove() mouse move
Keyboard event:
onkeypress()
Form event :
onsubmit()

onload example:

JavaScript Browser Object Model

window() Top-level objecthostory() browser record object
location() address object
document() document object

location() properties and methods

window( ) method

window() attribute

navigator() method

navigator() attribute

screen() attribute

history() method

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